Yes, I haven't actually tried Apple's MPEG2 codec yet, but it should work. The only problem I can see (currently - with MixEmergency 1.0.2) is that I would think that the MPEG2 codec from Apple won't allow MixEmergency to buffer video frames in the most efficient way. I'm not sure how many different codecs you have tried with MixEmergency, but you may have noticed that for some codecs (for example MPEG1 - which I my digital still camera records to) MixEmergency will give you a warning message (and the progress bar will turn red) warning you about the fact that the codec may play inefficiently. This isn't too much of a problem in most cases, but it can be a problem if you're making the media play backwards for a period of time, for example.