Sapphire will not play mpg files

whenever i try to play an mpg in Sapphire it gives the following message: An error occurred. Press play/pause to reset apple tv.
It works fine with divx.
Whats up?

mpg files are not recognized within QuickTime as having a separate audio and video track. As such, the ATV’s video player will refuse to play them. As a result, files missing an explicit video track are shuffled off to the audio player (not ideal, but better than nothing).

Unfortunately, the audio player in 1.0b6.5 is broken so that it cannot play on ATV > 1.1. This is the reason for the error you are seeing.