I have downloaded a file, where about half way through, the audio gets about 1 or 2 sec ahead of the video. I tried ripping the audio/video apart with Virtual Dub and then putting them back together with TMPGEnc, but that didn't work. I uncompressed the audio and tried again, but no luck. I tried speeding up the video bitrate, slowing down the audio bitrate and using the goldwave program, but still I can't get the audio and video to match up. Is it that the source file doesn't match, so I can't fix it or does anyone know another way I could try?

Thanks for any help you can provide.