i got this problem... i convert a avi/xvid to m2v+mp2 ( did this 20 times with no problem but not after reformat of pc) it encodes allright and i can play or author it with ifoedit...but when i play the dvd on my pc or dvd-player there is no sound...the original sound is/was mp3 and it converts it to mp2 as it should, when i try to play it in winamp or what ever player there is no sound (the mp2 file is aprox 300mb) i have checked my codecs and i see no problems + aspi layer is ok... i have used about 100 hours+ for this problem and 10 dvd´s wasted :=( plz tell me if u got any ideas :=)