I have a new Sony Digicam. I copied my DVD files to the computer using the enclosed software and got MPEG-2 files. I copied these to Vegas and rendered them and exported these via DVD Architect to a DVD. The sound was gone. Sony tech support said that you cannot convert their small dvd format to a larger dvd format while concatenating the smaller dvds because the sound is ac3. The forums seem to indicate that you can convert mpeg-2 files by rendering the audio to a separate (.wav) file and then use vegas and dvid architect to export to .avi. Can anyone describe the process for doing this?

Much appreciated,

David