[vmpaul]

Is there a way to view a list of components and codecs installed in/for Quicktime?

Background: I'm having trouble playing some QT videos on my iBook but it seems to work on my desktop machine. I'm running the same system (10.2.4), the same version of QT Pro(6.1.1.) and I've transfered the same components into the Library.

I can't figure it out.

[Uncle Skeleton]

quicktime components can be installed in /Library/QuickTime, /System/Library/QuickTime, or ~/Library/QuickTime. If you still can't find the codec, start from scratch with the movie you can't play. open it in Quicktime Player and hit command-i or choose Show Movie Info from the Window menu. It will give a description of the video track like "MPEG muxed track" or "MP43". If it does, you can search for that on google and hopefully find the codec for download. To get you started, MP42 means MSMPEG4v2. MPG4 often means MSMPEG4v1. there are codecs for these on versiontracker. MP43, DIV3, DIV4, DIV5, DIVX, DX50, XVID, 3IV1, 3IV2, 3IVD are all mpeg-4 varieties (or close) that can be played by 3ivx. IV32, IV41 and IV50 are Indeo Video for which there are only codecs for OS 9 and earlier (found on Apple's website)

You can also try using Quicktime Update to download all the codecs in the component download program

[vmpaul]

Thanks , that worked. I knew everything except that there was another Quicktime folder in the System folder.

So there are 3? Which one tales priority?
/Library/QuickTime,
/System/Library/QuickTime, or
~/Library/QuickTime?

[Uncle Skeleton]

there's no priority. having a codec in one is the same as having it in another. The user should never have to modify the contents of /System, so I guess Apple decided to put it's codecs there so people wouldn't accidentally remove them. The ~/Library one (which you probably have to create yourself) is very useful for multi-user machines, so non-admin users can install codecs for themselves, and so if say two users preferred different divx codecs that conflicted with each other they wouldn't have to swap them all the time.

[vmpaul]

OK, thanks again for the help.