I used VirtualDub to save the audio as a wav renamed it to .AC3 then used BeSliced to fix the heder then used HeadAC3he to decode to a wav format it all works but i use VirtualDub to combine the video and audio at frist its ok but by the end of the video the sound is off i tryed to use Interleaving to offset the audio then the audio at the begening is off and by the end it's ok can someone help. thanks Mike