Another potential fix for choppy playback in QuickTime 7.5

Users who updated to QuickTime version 7.5 have been plagued by some annoying problems, including choppy playback.

Wednesday, July 2nd

Users who updated to QuickTime version 7.5 have been plagued by some annoying problems, including choppy playback, as noted here.

As previously reported, many users have resorted to downgrading their QuickTime installation to version 7.4.5 by using Pacifist. However, some users found choppy playback to be associated with improperly loaded plug-ins and add-ons from third party vendors as well as those included by Apple with prior versions of Quicktime.

Third-party add-ons include DivX, Flip4Mac, or FLV components, while the included plug-ins are AppleIntermediateCodec.component, and AppleMPEG2Codec.component. The files for these are located in the root library, therefore a faulty component will load improperly for all users, resulting in choppy playback even when a user creates a new account.

Fix

  • Remove and re-add all quicktime components and plug-ins.
  • Navigate to /Library/QuickTime/
  • Move all plug-in ".component" files from the folder (to the Desktop, for instance)
  • Launch QuickTime and quit it again
  • Place the ".component" files back in the QuickTime library folder
  • Launch QuickTime again, and the choppiness should be better.

Feedback? Late-breakers@macfixit.com.

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