QuickTime MPEG Extension

QuickTime MPEG Extension was a system extension that was developed by Apple Computer for classic Mac OS. It allowed playback of MPEG-1 video on Power Macintosh computers without the need for additional dedicated hardware, such as the Apple MPEG Media System card.

History
Version 1.0 of the extension was released on January 24, 1997 and supported QuickTime 2.5 and later. Version 1.02 supported QuickTime 3, which was released in March 1998. It was no longer needed with the release of QuickTime 4 in June 1999, which had MPEG-1 functionality built-in.