I have an .avi file someone has sent me, and the audio won't play in Quicktime Player, only the video. However, both the video and audio work in VLC player. My problem is that I need to import the file to a project in DVD Studio Pro, to be burned to dvd. When I do that, the audio doesn't work. Am I missing a codec? Am I an idiot? I've never encountered this before. Thanks for any suggestions.