I just discovered when I accidentally loaded a backup DVDR onto my hardware DVD player that it displayed and played the mpg files on it so I thought I would just burn some mpegs I have directly to disc rather than demux them to plug them into DVDAuthorGUI. I have a couple multi-part flv files that I want to convert to mpg but I don't know how to do it in AviDemux. I can load and append them into one file but when I tried to save the video, I got the mpeg video but no sound (I selected vcd video and ac3 audio). When I selected mp2 audio I got an error.

Am I better off converting the flvs to separate mpeg files in WinFF and then appending them in AviDemux?