I am trying to convert a avi to mpg using tmpg 2.5. When I load the avi the audio source box is blank. Most of the avi's I load it automatically fills this in. I have also tried to export the audio into a wav file and it doesn't work. There is audio in the original video and it plays great as a avi, just doesn't want to let me change to a mpg for some reason. When I convert to an mpg, it has no sound. Please help! 8)