Re: Movie Corruption Issue

Posted by Mathieu Marchand-2 on
URL: http://confocal-microscopy-list.275.s1.nabble.com/Movie-Corruption-Issue-tp591691p591693.html

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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
>