Movie Corruption Issue
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http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal This is not technically a microscopy question, but I'm desperate: I use a mac. I have hundreds, if not thousands, of videos exported into .mpg and .mov formats over many years of imaging. Of late, I have noticed that _many_ of my older .mov files are seriously corrupted on the Mac. It's not the data. Archived movies are the same. It's the player- Quicktime. It no longer can play the old movies. However, 2-3 years ago, before this problem was widespread, we exported several .mov files to .avi. These .avi movies (fortunately) play just fine. However, attempt to export the corrupted .mov files now yield .avi files that look just like the .mov files- that is to say, they look like garbage. I have attempted to revert to older versions of quicktime- all the way to v7.3. No luck. They're still corrupted. The corruption is not a computer issue. The same movies are corrupted on many others Macs with current system installations. As you might expect, this makes for less than stellar presentations, when half of your movies crash. Oddly, some movies exported on the same day, using the same software, will play, and others will not. Has anyone else encountered this problem on the Mac? Any thoughts? --Steve **************************************************************************** Stephen C. Bunnell, Ph.D. Assistant Professor Tufts University Medical School Department of Pathology Jaharis Bldg., Room 512 150 Harrison Ave. Boston, MA 02111 Phone: (617) 636-2174 Fax: (617) 636-2990 Email: [hidden email] SHIPPING ADDRESS (for packages): Tufts University Receiving 37 Tyler St. Attn: Bunnell/Pathology/Jaharis 524 Boston, MA 02111 |
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Steve, You may need to use QT pro. Check the options under view. Play all frames. It is an option with the pro version. hope it helps James Beals [hidden email] 734.936-2051 205 Zina Pitcher Place 2038 MBNI Molecular and Behavioral Neuroscience Institute University of Michigan Ann Arbor, Mi 48109 On Jan 18, 2008, at 2:43 PM, Stephen Bunnell wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > This is not technically a microscopy question, but I'm desperate: > > I use a mac. I have hundreds, if not thousands, of videos exported > into .mpg > and .mov formats over many years of imaging. > > Of late, I have noticed that _many_ of my older .mov files are > seriously > corrupted on the Mac. It's not the data. Archived movies are the > same. It's > the player- Quicktime. It no longer can play the old movies. > However, 2-3 > years ago, before this problem was widespread, we exported > several .mov > files to .avi. These .avi movies (fortunately) play just fine. > However, > attempt to export the corrupted .mov files now yield .avi files > that look > just like the .mov files- that is to say, they look like garbage. > > I have attempted to revert to older versions of quicktime- all the > way to > v7.3. No luck. They're still corrupted. > > The corruption is not a computer issue. The same movies are > corrupted on > many others Macs with current system installations. > > As you might expect, this makes for less than stellar > presentations, when > half of your movies crash. > > Oddly, some movies exported on the same day, using the same > software, will > play, and others will not. > > Has anyone else encountered this problem on the Mac? Any thoughts? > > --Steve > > > > ********************************************************************** > ****** > Stephen C. Bunnell, Ph.D. > Assistant Professor > Tufts University Medical School > Department of Pathology > Jaharis Bldg., Room 512 > 150 Harrison Ave. > Boston, MA 02111 > > Phone: (617) 636-2174 > Fax: (617) 636-2990 > Email: [hidden email] > > SHIPPING ADDRESS (for packages): > Tufts University Receiving > 37 Tyler St. > Attn: Bunnell/Pathology/Jaharis 524 > Boston, MA 02111 |
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Steve, If no one comes up with a simple fix, you might try this. Get Graphic Converter from, http://www.lemkesoft.com/ Open movie with GC, then go to the file menu and select "Save a copy as". In the save window, select "pict", "Jpeg", or whatever as the format, make a new folder for the saved files, then click "Save". At this point you'll get a new window that will let you select "Export all available frames". Once you've selected this, click OK. All the frames will be saved as individual images in the format you selected. These can then be re-assembled as a movie with GC, Quicktime Pro, or some other such program. Hope that helps, Steve PS If GC won't open your Quicktime movies, there probably is a problem with them. On Jan 18, 2008, at 1:43 PM, Stephen Bunnell wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > This is not technically a microscopy question, but I'm desperate: > > I use a mac. I have hundreds, if not thousands, of videos exported > into .mpg > and .mov formats over many years of imaging. > > Of late, I have noticed that _many_ of my older .mov files are > seriously > corrupted on the Mac. It's not the data. Archived movies are the > same. It's > the player- Quicktime. It no longer can play the old movies. > However, 2-3 > years ago, before this problem was widespread, we exported > several .mov > files to .avi. These .avi movies (fortunately) play just fine. > However, > attempt to export the corrupted .mov files now yield .avi files > that look > just like the .mov files- that is to say, they look like garbage. > > I have attempted to revert to older versions of quicktime- all the > way to > v7.3. No luck. They're still corrupted. > > The corruption is not a computer issue. The same movies are > corrupted on > many others Macs with current system installations. > > As you might expect, this makes for less than stellar > presentations, when > half of your movies crash. > > Oddly, some movies exported on the same day, using the same > software, will > play, and others will not. > > Has anyone else encountered this problem on the Mac? Any thoughts? > > --Steve > > > > ********************************************************************** > ****** > Stephen C. Bunnell, Ph.D. > Assistant Professor > Tufts University Medical School > Department of Pathology > Jaharis Bldg., Room 512 > 150 Harrison Ave. > Boston, MA 02111 > > Phone: (617) 636-2174 > Fax: (617) 636-2990 > Email: [hidden email] > > SHIPPING ADDRESS (for packages): > Tufts University Receiving > 37 Tyler St. > Attn: Bunnell/Pathology/Jaharis 524 > Boston, MA 02111 |
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Steve, Larry Jordan is a wonderful resource for Quicktime related issues... http://www.larryjordan.biz/ Steve -- Steve Paddock, Ph.D., Howard Hughes Medical Institute, Dept. Molecular Biology, Univ. Wisconsin, 1525 Linden Drive, Madison, WI 53706. 608 262 7898 (lab.) 608 242 7391 (home) 608 770 5467 (cell) 608 770 1301 (cell) 608 262 9343 (FAX) http://www.molbio.wisc.edu/carroll |
 
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Hanspeter Niederstrasser-3 |
Re: Movie Corruption Issue
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Stephen Bunnell wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > This is not technically a microscopy question, but I'm desperate: > > I use a mac. I have hundreds, if not thousands, of videos exported into .mpg > and .mov formats over many years of imaging. > > Of late, I have noticed that _many_ of my older .mov files are seriously > corrupted on the Mac. It's not the data. Archived movies are the same. It's > the player- Quicktime. It no longer can play the old movies. However, 2-3 > years ago, before this problem was widespread, we exported several .mov > files to .avi. These .avi movies (fortunately) play just fine. However, > attempt to export the corrupted .mov files now yield .avi files that look > just like the .mov files- that is to say, they look like garbage. > > I have attempted to revert to older versions of quicktime- all the way to > v7.3. No luck. They're still corrupted. > > The corruption is not a computer issue. The same movies are corrupted on > many others Macs with current system installations. > > As you might expect, this makes for less than stellar presentations, when > half of your movies crash. > > Oddly, some movies exported on the same day, using the same software, will > play, and others will not. > > Has anyone else encountered this problem on the Mac? Any thoughts? I noticed this a couple months ago with some files made in older versions of QuickTime (v7.2.something I think) and saved using certain codecs, and now v7.3.something will garble it. I would need to go back to my files to see what codec and Quicktime version was at fault, but I _think_ it might have been the Animation codec. If you view a QuickTime movie and press pretzel-I, it will tell you the codec that was used, and you can see if there's a similarity between the 'good' movies and the 'bad' movies. Do you have access to a Mac with an older version of QuickTime (v7.2 or earlier) to test view the files with? Reinstalling an older quicktime over a new version might not clear the updated decoders, so a Other than that, I agree with Stephen Kempf about Graphic Converter. It's great software, if anything for very rapid batch conversions between formats. Also, you might want to try VLC player <http://www.videolan.org/vlc/> for movies. Hanspeter -- Hanspeter Niederstrasser, Ph.D. Dept. of Microbiology hn2157 at columbia dot edu 701 W. 168th St. Chang Lab New York, NY 10032 Columbia University |
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Dear Steve, This often happens in current QuickTime versions when the movie file size is large. The movies will seemingly stutter - start to play for a few frames and then stop. Especially if they were originally created with Apple animation. This will not happen with smaller files. Is there a way that you can compress before you open them with QuickTime? best, Ann >Search the CONFOCAL archive at >http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > >This is not technically a microscopy question, but I'm desperate: > >I use a mac. I have hundreds, if not thousands, of videos exported into .mpg >and .mov formats over many years of imaging. > >Of late, I have noticed that _many_ of my older .mov files are seriously >corrupted on the Mac. It's not the data. Archived movies are the same. It's >the player- Quicktime. It no longer can play the old movies. However, 2-3 >years ago, before this problem was widespread, we exported several .mov >files to .avi. These .avi movies (fortunately) play just fine. However, >attempt to export the corrupted .mov files now yield .avi files that look >just like the .mov files- that is to say, they look like garbage. > >I have attempted to revert to older versions of quicktime- all the way to >v7.3. No luck. They're still corrupted. > >The corruption is not a computer issue. The same movies are corrupted on >many others Macs with current system installations. > >As you might expect, this makes for less than stellar presentations, when >half of your movies crash. > >Oddly, some movies exported on the same day, using the same software, will >play, and others will not. > >Has anyone else encountered this problem on the Mac? Any thoughts? > > --Steve > > > >**************************************************************************** >Stephen C. Bunnell, Ph.D. >Assistant Professor >Tufts University Medical School >Department of Pathology >Jaharis Bldg., Room 512 >150 Harrison Ave. >Boston, MA 02111 > >Phone: (617) 636-2174 >Fax: (617) 636-2990 >Email: [hidden email] > >SHIPPING ADDRESS (for packages): >Tufts University Receiving >37 Tyler St. >Attn: Bunnell/Pathology/Jaharis 524 >Boston, MA 02111 -- Ann Haberman, PhD Department of Laboratory Medicine Yale University School of Medicine 1 Gilbert St. TAC S541 New Haven, CT 06510 203-785-7349 203-785-5415 (fax) [hidden email] |
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal It you want to consider a different format, it seems as x264 (H264) and XviD are one of the best freely available encoders for movie type data. You can use different containers MP4, AVI, MPG using the same encoder. You can check Wikipedia for codecs and follow the many links. I found MediaCoder very useful for re-encoding. This program seems to partially work with WINE on OSX so it probably is not the best choice for OS X. If you use double or triple pass very little contrast is lost due to compression, however these codecs have primarily applications in encoding movies and as jpeg will use compression resulting in data quality reduction. Maybe others can comment on best "scientific" approach for video encoding. You might also want to check on windows computers and most likely they use a different decoder and it could be that your movies are played correctly. Beside quick time, there is also "windows media player classic" which should be able to play quick time movies. Once you are sure data is not corrupted, you can consider re-encoding or purchasing different media player software or getting a different codec. It's unlikely your data is corrupted but that your player does not render/decompress the video correctly. Urs Utzinger University of Arizona -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Ann Haberman Sent: Friday, January 18, 2008 2:20 PM To: [hidden email] Subject: Re: Movie Corruption Issue Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Dear Steve, This often happens in current QuickTime versions when the movie file size is large. The movies will seemingly stutter - start to play for a few frames and then stop. Especially if they were originally created with Apple animation. This will not happen with smaller files. Is there a way that you can compress before you open them with QuickTime? best, Ann >Search the CONFOCAL archive at >http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > >This is not technically a microscopy question, but I'm desperate: > >I use a mac. I have hundreds, if not thousands, of videos exported into .mpg >and .mov formats over many years of imaging. > >Of late, I have noticed that _many_ of my older .mov files are seriously >corrupted on the Mac. It's not the data. Archived movies are the same. It's >the player- Quicktime. It no longer can play the old movies. However, 2-3 >years ago, before this problem was widespread, we exported several .mov >files to .avi. These .avi movies (fortunately) play just fine. However, >attempt to export the corrupted .mov files now yield .avi files that look >just like the .mov files- that is to say, they look like garbage. > >I have attempted to revert to older versions of quicktime- all the way to >v7.3. No luck. They're still corrupted. > >The corruption is not a computer issue. The same movies are corrupted on >many others Macs with current system installations. > >As you might expect, this makes for less than stellar presentations, when >half of your movies crash. > >Oddly, some movies exported on the same day, using the same software, will >play, and others will not. > >Has anyone else encountered this problem on the Mac? Any thoughts? > > --Steve > > > >*************************************************************************** >Stephen C. Bunnell, Ph.D. >Assistant Professor >Tufts University Medical School >Department of Pathology >Jaharis Bldg., Room 512 >150 Harrison Ave. >Boston, MA 02111 > >Phone: (617) 636-2174 >Fax: (617) 636-2990 >Email: [hidden email] > >SHIPPING ADDRESS (for packages): >Tufts University Receiving >37 Tyler St. >Attn: Bunnell/Pathology/Jaharis 524 >Boston, MA 02111 -- Ann Haberman, PhD Department of Laboratory Medicine Yale University School of Medicine 1 Gilbert St. TAC S541 New Haven, CT 06510 203-785-7349 203-785-5415 (fax) [hidden email] |
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In reply to this post by Stephen Bunnell
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http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal On Fri, 18 Jan 2008, Stephen Bunnell wrote: > > Has anyone else encountered this problem on the Mac? Any thoughts? > I've run into something similar, though in Windows. I had a PowerPoint presentation that I created in 1999 and decided to display it recently. It worked fine, except that none of the .mov files would display. When I converted it to OpenOffice Presenter in Linux, it worked fine. A friend pointed out a Microsoft announcement about it. According to Microsoft, it was necessary to convert the file to .avi. I did it two ways -- first I used Quicktime Pro to convert the files to avi. Later, someone told me all I had to do was *rename* the files, so I tried it and that worked, too. It turns out that it isn't the *format* as much as the *compression scheme* and a codec change. See: http://support.microsoft.com/kb/q266983/ I suspect, then, that it may not be a OS issue, but an application issue, probably involving a codec mismatch. billo http://www.billoblog.com/billoblog |
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I've also had a problem with AVI files on Vista. On my HP desktop running Vista, AVI files from one of my digital cameras and some older AVI files from work just don't play. This means that none of the Microsoft home video editing tools work with them. I've tooled around the Microsoft site a little and done some Google searches but haven't figured out how to get the codecs into Vista. On my daughters' Toshiba Vista laptop they all work just fine. So if I really really need a file, I chase them off YouTube and IMing and use their laptop. Good luck with Vista. -mc > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > On Fri, 18 Jan 2008, Stephen Bunnell wrote: > >> >> Has anyone else encountered this problem on the Mac? Any thoughts? >> > > I've run into something similar, though in Windows. I had a PowerPoint > presentation that I created in 1999 and decided to display it recently. > It worked fine, except that none of the .mov files would display. When I > converted it to OpenOffice Presenter in Linux, it worked fine. > > > A friend pointed out a Microsoft announcement about it. According to > Microsoft, it was necessary to convert the file to .avi. I did it two > ways -- first I used Quicktime Pro to convert the files to avi. Later, > someone told me all I had to do was *rename* the files, so I tried it and > that worked, too. > > It turns out that it isn't the *format* as much as the *compression > scheme* and a codec change. See: > > http://support.microsoft.com/kb/q266983/ > > > I suspect, then, that it may not be a OS issue, but an application issue, > probably involving a codec mismatch. > > billo > http://www.billoblog.com/billoblog > _________________________________________ Michael Cammer http://www.aecom.yu.edu/aif/ |
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Stephen Bunnell |
Re: Movie Corruption Issue ( Part II )
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In reply to this post by Stephen Bunnell
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http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Thanks to everybody for all of their comments! To clarify what is going on: None of my movies are corrupted. All of my movies play perfectly on an old OS9.2 iMac running Quicktime 6.0. My installation of Quicktime 7.4, and previously QT 7.3, seem to lack a codec required to view my older movies. I have not yet tried reverting to a QT older than 7.3. I am worried that this will goober up my nice new Mac. The suspect codec is likely to be Apple's 'Animation' codec, which is what I used to export all of these movies prior to 2004. When I view the movies on 'fresh from the shop' Macs without outside software, the movies are also not playing correctly. (OK. I snuck into an Apple Store and checked the movies from a memory stick...) Therefore the problem is not likely to be with any extraneous installed software or codecs. It is most likely with the Apple standard Mac QT codecs. I have QT Pro- the same problem manifests under normal and pro versions. Graphic Converter is a joy. But it also appears to use the QT engine. Therefore, every movie that is incorrectly read by the QT Player is also 'bad' in Graphic Converter. Same with VLC, which I also love, normally. I have emailed Larry Jordan, and will let you all know if he has any words of genius. I hope so! Regarding file size: The files are only a few MB, so I rather hope this isn't the problem. In any case, I can't compress them, since nothing can read them, barring the old iMac with QT6. Regarding alternate formats: Back in the day, when these movies still worked, I exported several to AVI. The quality was reduced a bit, but it was acceptable. These movies still play. Clearly, other codecs are more robust. Nevertheless, these are the movies I have. I do not fancy retooling PPT presentations with dozens of movies. Nor do I fancy having to move >2000 movies from my MBP to an iMac, batch converting to AVI, and then re-creating every PPT presentations I've prepared since 2004! This is a huge backwards compatibility issue for scientific data. I'd rather get the movies to play with a repaired codec. Does anyone know how to raise such issues with Apple? -Steve **************************************************************************** Stephen C. Bunnell, Ph.D. Assistant Professor Tufts University Medical School Department of Pathology Jaharis Bldg., Room 512 150 Harrison Ave. Boston, MA 02111 Phone: (617) 636-2174 Fax: (617) 636-2990 Email: [hidden email] This is not technically a microscopy question, but I'm desperate: I use a mac. I have hundreds, if not thousands, of videos exported into .mpg and .mov formats over many years of imaging. Of late, I have noticed that _many_ of my older .mov files are seriously corrupted on the Mac. It's not the data. Archived movies are the same. It's the player- Quicktime. It no longer can play the old movies. However, 2-3 years ago, before this problem was widespread, we exported several .mov files to .avi. These .avi movies (fortunately) play just fine. However, attempt to export the corrupted .mov files now yield .avi files that look just like the .mov files- that is to say, they look like garbage. I have attempted to revert to older versions of quicktime- all the way to v7.3. No luck. They're still corrupted. The corruption is not a computer issue. The same movies are corrupted on many others Macs with current system installations. As you might expect, this makes for less than stellar presentations, when half of your movies crash. Oddly, some movies exported on the same day, using the same software, will play, and others will not. Has anyone else encountered this problem on the Mac? Any thoughts? --Steve |
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In reply to this post by Michael Cammer
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal There is a free vista codec pack one can obtain for versions of vista that do not come with advanced codecs such as the Vista Business Edition. This codec pack is based on open source libraries but I would not call it consumer grade software (simply because of its hundreds of options and the level of documentation). To maintain scientific grade quality, often lossless compression is required such as the QuickTime Animation Codec. So far I have not been successful in figuring out what products would allow lossless encoding with other algorithms such as MPEG-4. The issue of not being able to play certain movie files is probably due to companies desire to create revenue opportunities with movie playback software (e.g. Windows Vista Business does not natively play DVD movies). It seems when implementing those revenue opportunities, backwards compatibility is compromised. Urs Utzinger University of Arizona -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Michael Cammer Sent: Monday, January 21, 2008 8:07 PM To: [hidden email] Subject: Re: Movie Corruption Issue Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I've also had a problem with AVI files on Vista. On my HP desktop running Vista, AVI files from one of my digital cameras and some older AVI files from work just don't play. This means that none of the Microsoft home video editing tools work with them. I've tooled around the Microsoft site a little and done some Google searches but haven't figured out how to get the codecs into Vista. On my daughters' Toshiba Vista laptop they all work just fine. So if I really really need a file, I chase them off YouTube and IMing and use their laptop. Good luck with Vista. -mc > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > On Fri, 18 Jan 2008, Stephen Bunnell wrote: > >> >> Has anyone else encountered this problem on the Mac? Any thoughts? >> > > I've run into something similar, though in Windows. I had a PowerPoint > presentation that I created in 1999 and decided to display it recently. > It worked fine, except that none of the .mov files would display. When I > converted it to OpenOffice Presenter in Linux, it worked fine. > > > A friend pointed out a Microsoft announcement about it. According to > Microsoft, it was necessary to convert the file to .avi. I did it two > ways -- first I used Quicktime Pro to convert the files to avi. Later, > someone told me all I had to do was *rename* the files, so I tried it and > that worked, too. > > It turns out that it isn't the *format* as much as the *compression > scheme* and a codec change. See: > > http://support.microsoft.com/kb/q266983/ > > > I suspect, then, that it may not be a OS issue, but an application issue, > probably involving a codec mismatch. > > billo > http://www.billoblog.com/billoblog > _________________________________________ Michael Cammer http://www.aecom.yu.edu/aif/ |
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Hanspeter Niederstrasser-3 |
Re: Movie Corruption Issue ( Part II )
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal Stephen Bunnell wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > Thanks to everybody for all of their comments! > > To clarify what is going on: > > None of my movies are corrupted. All of my movies play perfectly on an > old OS9.2 iMac running Quicktime 6.0. > > My installation of Quicktime 7.4, and previously QT 7.3, seem to lack a > codec required to view my older movies. I have not yet tried reverting to a > QT older than 7.3. I am worried that this will goober up my nice new Mac. > The suspect codec is likely to be Apple's 'Animation' codec, which is what I > used to export all of these movies prior to 2004. ... > with a repaired codec. Does anyone know how to raise such issues with Apple? Steve, You can file a bug directly with apple at <http://bugreporter.apple.com/> and also ask in the Quicktime-users mailing list: <http://lists.apple.com/mailman/listinfo/quicktime-users>. Also, I would be wary of downgrading QT versions because a lot of the system uses QT for backend stuff and it's unclear how things will react to it. If you can, try to find an OS X mac w/ Quicktime 7.2 with one of your colleagues and test your videos there. This will minimize the time window to when the codec was broken and help out the bug tracking tremendously. Hanspeter -- Hanspeter Niederstrasser, Ph.D. Dept. of Microbiology hn2157 at columbia dot edu 701 W. 168th St. Chang Lab New York, NY 10032 Columbia University |
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Bill Oliver-3 |
Re: Movie Corruption Issue ( Part II )
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal On Tue, 22 Jan 2008, Hanspeter Niederstrasser wrote: > >> with a repaired codec. Does anyone know how to raise such issues with >> Apple? I have not found Apple to be very responsive. However, there is one last thing you can try. I'm more of a Linux guy than a Mac or Windoze person, and there is a player originally written for Linux but ported to the Mac called "mplayer." It's primarily a command-line player (though it has a gui if you want to use it). The nice thing about it is that it comes with a zillion codecs (that you have to download separately), and I have yet to find an unenrypted movie that it can't handle. It comes with a function for translating between formats and codecs, and is generally the workhorse for this kind of in the Linux world. Take a look at: http://www.mplayerhq.hu/design7/news.html billo |
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George McNamara |
Re: Movie Corruption Issue ... video codecs
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
Dear Listserv, I've been burned enough with compressed videos on different PC's that I now routinely use uncompressed AVI, made with MetaMorph or ImageJ. Big but safe. Web sites where I've found video codec's are listed below. I am a fan of the K-Lite Mega Codec Pack. At bottom is a comparison table I made using MetaMorph to generate the movies (except for Quicktime, which Meta 6.x always crashed trying to make). Download, install, use at your own risk! Video Codec downloads Siggraph Codec Central http://www.siggraph.org/education/materials/HyperGraph/video/codecs/Default.htm FourCC codecs list (Four-Character Codes to identify video streams) http://www.fourcc.org/codecs.php Microsoft's FourCC for video compression http://www.microsoft.com/whdc/archive/fourcc.mspx Microsoft DirectX 9.0c end-user runtime http://www.microsoft.com/downloads/details.aspx?FamilyID=0a9b6820-bfbb-4799-9908-d418cdeac197&displaylang=en Microsoft Codec installation packages http://www.microsoft.com/windows/windowsmedia/format/codecdownload.aspx DivX codec http://www.divx.com/divx/ Codec-Download (archive) http://www.codec-download.com/ K-Lite Mega Codec Pack http://www.codecguide.com/download_mega.htm Ligos Indeo codec family http://www.ligos.com/indeo.htm 3ivx D4 4.5 http://www.3ivx.com/ XviD codec http://www.xvidmovies.com/codec/ HuffYUV http://neuron2.net/www.math.berkeley.edu/benrg/huffyuv.html Apple Quicktime http://www.apple.com/quicktime/ filename filesize Score (sum) VP61 Advanced Profile 1,582,592 1 VP62 Heightened Sharpness 1,584,640 1 VP60 Simple Profile 1,612,288 1 DivX MPEG-4 Fast-Motion 2,459,648 5 DivX MPEG-4 Low-Motion 4,312,064 4 Microsoft MPEG-4 V2 6,698,496 2 Intel Indeo video R3.2 20,154,880 6 Microsoft Windows Media Video 9 28,512,768 2 Cinepak 35,144,192 2 Intel Indeo Video 4.5 38,092,800 2 Microsoft Video 1 65,801,728 3 QuickTime 225,830,571 4 uncompressed 363,842,048 2 average score (of 24 codecs) 50,512,800 3.16 standard deviation 88,101,414 2.13 median 13,934,080 2 maximum possible score (high is bad) 12 Videos made with MetaMorph 6.3.2. Videos examined in Microsoft Windows Media Player 9.00.00.3250, zoom 200%, except for Quicktime movie viewed with Apple Quicktime Player 6.5.2. At 03:54 PM 1/22/2008, you wrote: Search the CONFOCAL archive at George McNamara, Ph.D. University of Miami, Miller School of Medicine Image Core Miami, FL 33010 [hidden email] [hidden email] 305-243-8436 office http://home.earthlink.net/~pubspectra/ http://home.earthlink.net/~geomcnamara/ http://www.sylvester.org/health_pro/shared_resources/index.asp (see Analytical Imaging Core Facility) |
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George McNamara |
Re: Movie Corruption Issue ... video codecs
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
Hi Joel and listserv,
From my scoring scheme. Sorry about the (lack of) formatting in the raw data scoring sheet below - I tried sending the original Excel file (only 37 kb) but the message bounced. I've slightly formatted it here. I assume "brand marks" would go away if I paid for the codec (brand marks = "free" trial version). I've also included comments at bottom. The uncompressed did look 'slightly pixelated" compared to the original stack in MetaMorph. filename VP61 Advanced Profile VP62 Heightened Sharpness VP60 Simple Profile XviD MPEG-4 DivX MPEG-4 Fast-Motion 3ivx D4 4.5.1 Pro Video Codec DivX 6.0 codec DivX MPEG-4 Low-Motion Microsoft MPEG-4 V2 Microsoft MPEG-4 V1 Microsoft Windows Media Video VP31 Compressor Intel I.263 Video Driver 2.55.01 PICVideo MJPEG Codec Intel Indeo video R3.2 Microsoft Windows Media Video 9 Cinepak Ligos Indeo Video 5.11 Ligos Indeo XP Video 5.2 Intel Indeo Video 4.5 Microsoft Video 1 Huffyuv v2.1.1 - CESSP Patch blank (no name) Codec QuickTime uncompressed average score standard deviation median Scoring (0=good, 1=acceptable, 2=bad) (0=good, 1=slightly pixelated, 2=strongly pixelated; 3=blurry; 4=jitters) (0=good, 1=acceptable, 2=bad) (0=good, 1=acceptable, 2=bad) (0=absent; 1=present some frames; 2=present all frames) Codec Comment --------- --------------- VP61 Advanced Profile VP62 Heightened Sharpness VP60 Simple Profile XviD MPEG-4 Brand DivX MPEG-4 Fast-Motion 3ivx D4 4.5.1 Pro Video Codec DivX 6.0 codec DivX MPEG-4 Low-Motion Microsoft MPEG-4 V2 Microsoft MPEG-4 V1 Microsoft Windows Media Video VP31 Compressor Blurry text, Intel I.263 Video Driver 2.55.01 PICVideo MJPEG Codec Intel Indeo video R3.2 Microsoft Windows Media Video 9 Cinepak title text off-white, Ligos Indeo Video 5.11 Ligos Indeo XP Video 5.2 Intel Indeo Video 4.5 Microsoft Video 1 Huffyuv v2.1.1 - CESSP Patch blank (no name) Codec QuickTime uncompressed average score standard deviation median At 10:39 PM 1/22/2008, you wrote: George, George McNamara, Ph.D. University of Miami, Miller School of Medicine Image Core Miami, FL 33010 [hidden email] [hidden email] 305-243-8436 office http://home.earthlink.net/~pubspectra/ http://home.earthlink.net/~geomcnamara/ http://www.sylvester.org/health_pro/shared_resources/index.asp (see Analytical Imaging Core Facility) |
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal In follow up to my own post on the failure of old movies exported using the 'Apple Animation' codec: The defect is in Apple's new versions of Quicktime. Both Quicktime 7.3 and 7.4 fail to play these movies. After reinstalling my entire OS, with Quicktime 7.1.3 and OSX version 10.4.11, all of these movies now play perfectly. I've not tested Quicktime 7.2. As to a solution... I've heard nothing at all from Apple. I'm not going to upgrade Quicktime again for at least a year. My advice is to be very wary up performing any Quicktime upgrades before a presentation! The new versions (7.3 and 7.4 for the Mac) appear to have _many_ bugs, judging from the online discussions. Every other Mac-based player I tried failed in exactly the same way, despite many good suggestions from the list. Ultimately, I will need a Mac fix for Quicktime, or else I will have to re-export thousands of movies... -Thanks for all your advice. On 1/18/08 2:43 PM, "Stephen C. Bunnell" <[hidden email]> wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > This is not technically a microscopy question, but I'm desperate: > > I use a mac. I have hundreds, if not thousands, of videos exported into .mpg > and .mov formats over many years of imaging. > > Of late, I have noticed that _many_ of my older .mov files are seriously > corrupted on the Mac. It's not the data. Archived movies are the same. It's > the player- Quicktime. It no longer can play the old movies. However, 2-3 > years ago, before this problem was widespread, we exported several .mov > files to .avi. These .avi movies (fortunately) play just fine. However, > attempt to export the corrupted .mov files now yield .avi files that look > just like the .mov files- that is to say, they look like garbage. > > I have attempted to revert to older versions of quicktime- all the way to > v7.3. No luck. They're still corrupted. > > The corruption is not a computer issue. The same movies are corrupted on > many others Macs with current system installations. > > As you might expect, this makes for less than stellar presentations, when > half of your movies crash. > > Oddly, some movies exported on the same day, using the same software, will > play, and others will not. > > Has anyone else encountered this problem on the Mac? Any thoughts? > > --Steve > > > > **************************************************************************** > Stephen C. Bunnell, Ph.D. > Assistant Professor > Tufts University Medical School > Department of Pathology > Jaharis Bldg., Room 512 > 150 Harrison Ave. > Boston, MA 02111 > > Phone: (617) 636-2174 > Fax: (617) 636-2990 > Email: [hidden email] > > SHIPPING ADDRESS (for packages): > Tufts University Receiving > 37 Tyler St. > Attn: Bunnell/Pathology/Jaharis 524 > Boston, MA 02111 **************************************************************************** Stephen C. Bunnell, Ph.D. Assistant Professor Tufts University Medical School Department of Pathology Jaharis Bldg., Room 512 150 Harrison Ave. Boston, MA 02111 Phone: (617) 636-2174 Fax: (617) 636-2990 Email: [hidden email] SHIPPING ADDRESS (for packages): Tufts University Receiving 37 Tyler St. Attn: Bunnell/Pathology/Jaharis 524 Boston, MA 02111 |
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Mathieu Marchand-2 |
Re: Movie Corruption Issue
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal To comment the previous post, Everybody should be aware that using any other version than the latest available Quicktime is a major security risk, on both Mac and Windows. The last 7.3, 7.3.1 and 7.4 updates of Quicktime corrected some CRITICAL flaws: http://secunia.com/advisories/28502/ http://secunia.com/advisories/28092/ http://secunia.com/advisories/27755/ http://secunia.com/advisories/27523/ and these are the flaws for only the past 3 months These flaws are rated "extremely critical" and could give an attacker remote access on your system just by visiting a malicious website with your favorite browser. Since Quicktime 7.2 and later does not support Windows 2000 any more, I recommend to uninstall Quicktime on computers running Windows 2000. Support for old codecs like "animation" for quicktime or "cinepak" for vista is broken or problematic and people should stop using them, and plan to convert old movies to more recent codec. "Codec Packs" can sometimes solve your problem, but they usually have major stability / legality / security risks attached to them. They can introduce new problems, too (for example: the Perian codec pack for MacOS brakes the play out of 'ARAW' coded avi files including avi files generated by ImageJ). Picking a codec is a complex issue and there is no easy choice. It is something worth discussing with a specialist to make the best decision for your situation. -- Mathieu Marchand -- Bio-Imaging Resource Center, The Rockefeller University 1230 York Avenue, box 209, New York, NY 10021 http://www.rockefeller.edu/bioimaging . +1-212-327-7487 (7489 for fax) http://www.pfid.org/html/ppms_agree/?fr . On Jan 25, 2008 12:30 PM, Stephen Bunnell <[hidden email]> wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > In follow up to my own post on the failure of old movies exported using the > 'Apple Animation' codec: > > The defect is in Apple's new versions of Quicktime. Both Quicktime 7.3 and > 7.4 fail to play these movies. After reinstalling my entire OS, with > Quicktime 7.1.3 and OSX version 10.4.11, all of these movies now play > perfectly. I've not tested Quicktime 7.2. > > As to a solution... I've heard nothing at all from Apple. I'm not going to > upgrade Quicktime again for at least a year. My advice is to be very wary up > performing any Quicktime upgrades before a presentation! The new versions > (7.3 and 7.4 for the Mac) appear to have _many_ bugs, judging from the > online discussions. > > Every other Mac-based player I tried failed in exactly the same way, despite > many good suggestions from the list. Ultimately, I will need a Mac fix for > Quicktime, or else I will have to re-export thousands of movies... > > -Thanks for all your advice. > > > > > > On 1/18/08 2:43 PM, "Stephen C. Bunnell" <[hidden email]> wrote: > > > Search the CONFOCAL archive at > > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > > > This is not technically a microscopy question, but I'm desperate: > > > > I use a mac. I have hundreds, if not thousands, of videos exported into .mpg > > and .mov formats over many years of imaging. > > > > Of late, I have noticed that _many_ of my older .mov files are seriously > > corrupted on the Mac. It's not the data. Archived movies are the same. It's > > the player- Quicktime. It no longer can play the old movies. However, 2-3 > > years ago, before this problem was widespread, we exported several .mov > > files to .avi. These .avi movies (fortunately) play just fine. However, > > attempt to export the corrupted .mov files now yield .avi files that look > > just like the .mov files- that is to say, they look like garbage. > > > > I have attempted to revert to older versions of quicktime- all the way to > > v7.3. No luck. They're still corrupted. > > > > The corruption is not a computer issue. The same movies are corrupted on > > many others Macs with current system installations. > > > > As you might expect, this makes for less than stellar presentations, when > > half of your movies crash. > > > > Oddly, some movies exported on the same day, using the same software, will > > play, and others will not. > > > > Has anyone else encountered this problem on the Mac? Any thoughts? > > > > --Steve > > > > > > > > **************************************************************************** > > Stephen C. Bunnell, Ph.D. > > Assistant Professor > > Tufts University Medical School > > Department of Pathology > > Jaharis Bldg., Room 512 > > 150 Harrison Ave. > > Boston, MA 02111 > > > > Phone: (617) 636-2174 > > Fax: (617) 636-2990 > > Email: [hidden email] > > > > SHIPPING ADDRESS (for packages): > > Tufts University Receiving > > 37 Tyler St. > > Attn: Bunnell/Pathology/Jaharis 524 > > Boston, MA 02111 > > **************************************************************************** > Stephen C. Bunnell, Ph.D. > Assistant Professor > Tufts University Medical School > Department of Pathology > Jaharis Bldg., Room 512 > 150 Harrison Ave. > Boston, MA 02111 > > Phone: (617) 636-2174 > Fax: (617) 636-2990 > Email: [hidden email] > > SHIPPING ADDRESS (for packages): > Tufts University Receiving > 37 Tyler St. > Attn: Bunnell/Pathology/Jaharis 524 > Boston, MA 02111 > |
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Stephen Bunnell |
Re: Movie Corruption Issue & Codecs
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I agree that my short-term solution poses a security risk, but the inability to play my archived movies had effectively deleted my work product from 1999-2004. This was not recoverable without reinstalling an earlier version of the OS in order to downgrade Quicktime. Obviously, this is not the best strategy. Apple explicitly advertises legacy support for _all_ previous Quicktime codecs. This is an extremely appealing feature when legacy access to old scientific data is at issue. However, this is currently false. If Apple intends to discontinue/disable old codecs, they should make this apparent in the upgrade notes, so that users may convert their movies _before_ their ability to convert them is deleted. I cannot imagine any sane individual who would enjoy the prospect of retroactively re-encoding 5 years worth of compiled imaging data solely to maintain legacy access. So, I seek advice: Are there industry-standard lossless codecs that are expected to be supported for 10-20 years? What are the best options for long-term storage of imaging data? What resources are available that discuss the costs and benefits of various formats vis a vis scientific data? Best regards, Steve Bunnell On 1/25/08 1:16 PM, "Mathieu Marchand" <[hidden email]> wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > To comment the previous post, > > Everybody should be aware that using any other version than the latest > available Quicktime is a major security risk, on both Mac and Windows. > > The last 7.3, 7.3.1 and 7.4 updates of Quicktime corrected some CRITICAL > flaws: > http://secunia.com/advisories/28502/ > http://secunia.com/advisories/28092/ > http://secunia.com/advisories/27755/ > http://secunia.com/advisories/27523/ > and these are the flaws for only the past 3 months > > These flaws are rated "extremely critical" and could give an attacker > remote access on your system just by visiting a malicious website with > your favorite browser. > Since Quicktime 7.2 and later does not support Windows 2000 any more, > I recommend to uninstall Quicktime on computers running Windows 2000. > > Support for old codecs like "animation" for quicktime or "cinepak" for > vista is broken or problematic and people should stop using them, and > plan to convert old movies to more recent codec. "Codec Packs" can > sometimes solve your problem, but they usually have major stability / > legality / security risks attached to them. They can introduce new > problems, too (for example: the Perian codec pack for MacOS brakes the > play out of 'ARAW' coded avi files including avi files generated by > ImageJ). > > Picking a codec is a complex issue and there is no easy choice. It is > something worth discussing with a specialist to make the best decision > for your situation. **************************************************************************** Stephen C. Bunnell, Ph.D. Assistant Professor Tufts University Medical School Department of Pathology Jaharis Bldg., Room 512 150 Harrison Ave. Boston, MA 02111 Phone: (617) 636-2174 Fax: (617) 636-2990 Email: [hidden email] SHIPPING ADDRESS (for packages): Tufts University Receiving 37 Tyler St. Attn: Bunnell/Pathology/Jaharis 524 Boston, MA 02111 |
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Greg Martin-8 |
Re: Movie Corruption Issue & Codecs
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Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal
Hey Folks --
Steve, I know
this doesn't help you with your problem, but I guess the advice I'd throw
out for long term storage would be to always keep the original data
-- I'm assuming that the images were not collected directly as a movie
file. If you have a series of tiffs you can always re-make the movie with
a current codec. Sure they take up space, but so what -- I learned
and took to heart the mantra "film is cheap and time isn't" and now I
teach that digital storage space is cheap, and time
still isn't.
Be peace! Greg.
Greg Martin
Keck Microscopy Facility University of Washington Box 357290 Seattle, WA 98195-7290 206-685-8784 (office) 425-344-2632 (cell) www.depts.washington.edu/keck ----- Original Message -----
From: "Stephen Bunnell"
<[hidden email]>
To: <[hidden email]>
Sent: Friday, January 25, 2008 1:32
PM
Subject: Re: Movie Corruption Issue
& Codecs > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > I agree that my short-term solution poses a security risk, but the inability > to play my archived movies had effectively deleted my work product from > 1999-2004. This was not recoverable without reinstalling an earlier version > of the OS in order to downgrade Quicktime. Obviously, this is not the best > strategy. > > Apple explicitly advertises legacy support for _all_ previous Quicktime > codecs. This is an extremely appealing feature when legacy access to old > scientific data is at issue. However, this is currently false. If Apple > intends to discontinue/disable old codecs, they should make this apparent in > the upgrade notes, so that users may convert their movies _before_ their > ability to convert them is deleted. > > I cannot imagine any sane individual who would enjoy the prospect of > retroactively re-encoding 5 years worth of compiled imaging data solely to > maintain legacy access. > > So, I seek advice: Are there industry-standard lossless codecs that are > expected to be supported for 10-20 years? What are the best options for > long-term storage of imaging data? What resources are available that discuss > the costs and benefits of various formats vis a vis scientific data? > > Best regards, > > Steve Bunnell > > > > > > On 1/25/08 1:16 PM, "Mathieu Marchand" <[hidden email]> wrote: > >> Search the CONFOCAL archive at >> http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal >> To comment the previous post, >> >> Everybody should be aware that using any other version than the latest >> available Quicktime is a major security risk, on both Mac and Windows. >> >> The last 7.3, 7.3.1 and 7.4 updates of Quicktime corrected some CRITICAL >> flaws: >> http://secunia.com/advisories/28502/ >> http://secunia.com/advisories/28092/ >> http://secunia.com/advisories/27755/ >> http://secunia.com/advisories/27523/ >> and these are the flaws for only the past 3 months >> >> These flaws are rated "extremely critical" and could give an attacker >> remote access on your system just by visiting a malicious website with >> your favorite browser. >> Since Quicktime 7.2 and later does not support Windows 2000 any more, >> I recommend to uninstall Quicktime on computers running Windows 2000. >> >> Support for old codecs like "animation" for quicktime or "cinepak" for >> vista is broken or problematic and people should stop using them, and >> plan to convert old movies to more recent codec. "Codec Packs" can >> sometimes solve your problem, but they usually have major stability / >> legality / security risks attached to them. They can introduce new >> problems, too (for example: the Perian codec pack for MacOS brakes the >> play out of 'ARAW' coded avi files including avi files generated by >> ImageJ). >> >> Picking a codec is a complex issue and there is no easy choice. It is >> something worth discussing with a specialist to make the best decision >> for your situation. > > **************************************************************************** > Stephen C. Bunnell, Ph.D. > Assistant Professor > Tufts University Medical School > Department of Pathology > Jaharis Bldg., Room 512 > 150 Harrison Ave. > Boston, MA 02111 > > Phone: (617) 636-2174 > Fax: (617) 636-2990 > Email: [hidden email] > SHIPPING ADDRESS (for packages): > Tufts University Receiving > 37 Tyler St. > Attn: Bunnell/Pathology/Jaharis 524 > Boston, MA 02111 > |
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Urs Utzinger |
Re: Movie Corruption Issue & Codecs
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In reply to this post by Stephen Bunnell
Search the CONFOCAL archive at
http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I suggest well documented standards such as MPEG4 and JPEG2000. Open source encoders such as Xvid or x264 where you have access to the software code might be useful, however once the movie is encoded any player adhering to the standard can decode it. The encoders differ in their ability to compress and maintain quality but store data into a standard format. Open source decoders are available for both MPEG4 and JPEG2000. It is likely that in 20 years you will still find example source code. Lossless encoding is often not entirely lossless and testing if a particular configuration really did not change a single bit is time consuming. Making a ZIP archive of the original data seems to be the way to go. You might also want to check virtual machines such as VMWare where you can build a virtual computer (appliance) that has all your image processing software installed and at later time you can run it on another computer and redo your analysis. The advantage would be that you can archive your virtual computer and revive it in the future when there is no support for it anymore (assuming a program playing your virtual machine still exists). There are programs that create a virtual machine from a real hardware installed operating system. Urs Utzinger University of Arizona -----Original Message----- From: Confocal Microscopy List [mailto:[hidden email]] On Behalf Of Stephen Bunnell Sent: Friday, January 25, 2008 2:32 PM To: [hidden email] Subject: Re: Movie Corruption Issue & Codecs Search the CONFOCAL archive at http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal I agree that my short-term solution poses a security risk, but the inability to play my archived movies had effectively deleted my work product from 1999-2004. This was not recoverable without reinstalling an earlier version of the OS in order to downgrade Quicktime. Obviously, this is not the best strategy. Apple explicitly advertises legacy support for _all_ previous Quicktime codecs. This is an extremely appealing feature when legacy access to old scientific data is at issue. However, this is currently false. If Apple intends to discontinue/disable old codecs, they should make this apparent in the upgrade notes, so that users may convert their movies _before_ their ability to convert them is deleted. I cannot imagine any sane individual who would enjoy the prospect of retroactively re-encoding 5 years worth of compiled imaging data solely to maintain legacy access. So, I seek advice: Are there industry-standard lossless codecs that are expected to be supported for 10-20 years? What are the best options for long-term storage of imaging data? What resources are available that discuss the costs and benefits of various formats vis a vis scientific data? Best regards, Steve Bunnell On 1/25/08 1:16 PM, "Mathieu Marchand" <[hidden email]> wrote: > Search the CONFOCAL archive at > http://listserv.acsu.buffalo.edu/cgi-bin/wa?S1=confocal > > To comment the previous post, > > Everybody should be aware that using any other version than the latest > available Quicktime is a major security risk, on both Mac and Windows. > > The last 7.3, 7.3.1 and 7.4 updates of Quicktime corrected some CRITICAL > flaws: > http://secunia.com/advisories/28502/ > http://secunia.com/advisories/28092/ > http://secunia.com/advisories/27755/ > http://secunia.com/advisories/27523/ > and these are the flaws for only the past 3 months > > These flaws are rated "extremely critical" and could give an attacker > remote access on your system just by visiting a malicious website with > your favorite browser. > Since Quicktime 7.2 and later does not support Windows 2000 any more, > I recommend to uninstall Quicktime on computers running Windows 2000. > > Support for old codecs like "animation" for quicktime or "cinepak" for > vista is broken or problematic and people should stop using them, and > plan to convert old movies to more recent codec. "Codec Packs" can > sometimes solve your problem, but they usually have major stability / > legality / security risks attached to them. They can introduce new > problems, too (for example: the Perian codec pack for MacOS brakes the > play out of 'ARAW' coded avi files including avi files generated by > ImageJ). > > Picking a codec is a complex issue and there is no easy choice. It is > something worth discussing with a specialist to make the best decision > for your situation. **************************************************************************** Stephen C. Bunnell, Ph.D. Assistant Professor Tufts University Medical School Department of Pathology Jaharis Bldg., Room 512 150 Harrison Ave. Boston, MA 02111 Phone: (617) 636-2174 Fax: (617) 636-2990 Email: [hidden email] SHIPPING ADDRESS (for packages): Tufts University Receiving 37 Tyler St. Attn: Bunnell/Pathology/Jaharis 524 Boston, MA 02111 |
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