Okay, got Virtual Dub and the single audio files are all able to be joined, as are the dual audio files. So we're good there. As you said, joining both cannot be done directly. So, now I need to ask a real noob question = HOW do I retrieve the 2nd audio channel using Virtual Dub? I played around with every setting I could think of and understand (not many, LOL). I managed to create a .wav of the main audio stream, but can't figure out how to even play the second one with VD, let alone capture it. Thanx in advance!