I have downloaded an AVI file with an ac3 audio file. I have tried converting this avi file to an MPEG2 file for burning to DVD. However, I lose the audio on the burnt DVD, I have used DVD Moviefactory to burn the DVD. I have also used Nandub to extract the audio file saved it as a WAV file, and also used TMPGENC to encode the video and audio separately and have read and followed the guides on VCDhelp as best I can However there is still no audio, Is it due to DVD Moviefactory not being able to handle the ac3 file? I'm not sure what else to do?