First I tried to use WinX HD Video Converter Deluxe. That works fantastic, more than 90% of the time I think. With this one however it turned up the volume but from 2 minutes 20 seconds up until 2 minutes 41 seconds it screwed up the video. I tried again. Same thing... what free program could help. It would be nice if I could also change it to .mp4 but if not, that is okay, long as I can hear this. Thanks.