Works directly with QuickTime to provide complete playback and control of MPEG Layer 1 movies. After you've installed the extension, QuickTime will automatically open the MPEG Layer 1 movie into a QuickTime movie containing a single MPEG track each time you open an MPEG movie. This single MPEG track references both the video and audio streams of the original MPEG movie. You cannot use the QuickTime MPEG extension to compress a QuickTime movie to an MPEG file. Needs a Power Macintosh computer, QuickTime 2.5 or newer and approximately 2.5 megabytes (MB) of free memory per MPEG bitstream (for optimal playback)
