If it sounds like I don't know what I'm talking about it's because I don't, so I apologize for that.
I'm using Vegas Movie Studio 9 and have several clips inserted into a project with the original audio removed from the clips. I've imported some music (in wmv) into the project that plays with the movie just fine while I'm working on it but when I make the movie in MPEG-2 (haven't tried another format yet) I see the video but can't hear the music. It isn't in mute and the only possible thing I can think of is that the files were originally in MPEG-4. Could that be the problem and if so how can I fix it?