As reported by MacFixIt, we have confirmed that QuickTime's MPEG-2 component (an additional purchase made by several users which allowed the playback of MPEG-2 files) expired on December 14th, 2003, leaving thousands of users without the ability to play MPEG-2 files. We have also confirmed that a re-install of the component has no effect.

Update: Repairing permissions has no effect.

Update: Several MacFixIt readers are reporting that the MPEG-2 component for QuickTime 6.3 is working properly. This problem may only be related to the new MPEG-2 component released for QuickTime 6.4.