[cleantone]

if yer only demuxing, messing with the audio, & then re-muxing, there should be no re-compressing of the video footage

Yeah I do know that. I think you might have to use different methods (software) depending on the audio format. I have managed to make it work for PCM audio. I was bumping to ask about AC3 sources material. I ended up just letting it recompress the audio on this one. This was not a vital project. Just a wierd fan commentary I didn't want to watch on my computer.