I recently purchased some LOST episodes from iTunes to watch on my G3 iBook but when I play them they run really bad. (Lagging video mostly) So I assume its my iBook (I've had it for awhile). So I burned the episodes to CD (I have a CDR/DVD Player on my iBook) and figured I would bring it to work and burn the episodes on DVD using iDVD (I have a G5 with a DVD Burner at work) so that I can just watch the episodes I bought as a DVD on my iBook. But when I try to drag the movie to my project in iDVD I get a windwo that says Unsupported file type: Invalid Video. When I click get info on one of the epsiodes it says its a MPEG-4 Video File. Can anyone tell me what's wrong or if there is a different way to watch the episodes I bougth from iTunes on my G3 iBook without it lagging so much. Thanks for any help you can give me.