hey, i got a video card that captures dvd quality mpeg 2 files in real time. when i do that i have a few capturing options: a muxed mpg file with mpeg audio, a muxed mpg file with LPCM audio, seperate m2v and mpa files or seperate m2v and wav files. when i did my quality tests the sound captred using the muxed LPCM or seperate m2v and wav was much much better then mpeg audio. the problem is, i can't fined a software that will let me demux the wav file from the LPCM muxed file, and i can't find a way to edit seperate m2v wav files precisely.

is there anybody here using a good method of capturing and editing seperated m2v and wav files?