I use Hauppauge PVR. When editing TV commercials out from MPEG2 using Merge & Cut tool of [bold]TMPGEnc Plus[/bold], got the following problem: Video and audio OK, but about 10 minutes later the sound lost.. The rest of the video has no sounds! This happen to occur every time.. First I multiplex the video. The original unedited MPEG2 has no audio problems. What's wrong?? Did not find the answer by searching web.. I tried simple nanoPEG Editor, which came with this PVR, but looks like no help either, sound lost after 10 minutes.. Bit frustrated about this.