i used to hate going to weddings, all the old dears would poke me and say "your next", they stopped saying it after i did it to them at funerals -Chopper Reid-
alright if your lookin for something very simple to decompress your audio to wav you cant go past decompressor.exe bundled with avi2vcd, this prog is a no brainer but its 1 of the best decompressors out there id even go as far as saying its better than vdub.
anyways download the whole avi2vcd package extract all contents to a new folder and you'll find decompressor.exe with it, thats all you want from the bundle, delete all the other files if you want especially the avi2vcd encoder, its a very low quality encoder thats not worth your time. then just load up your file into decompressor and its as easy as hitting the convert button. after its done you'll get a whole new file video included with the audio decompressed to wav, just load up the new file it creates into TMPGEnc and bobs your fathers brother, you shouldnt have any dramas after that.
i used to hate going to weddings, all the old dears would poke me and say "your next", they stopped saying it after i did it to them at funerals -Chopper Reid-
open it, load you file (in file>open )
go to video, select DIRECT STREAM COPY (important)
then go to streams > stream list, highlight the audio track you will see there, and click save wav . You will be presented with a box asking you to name the file, and hey presto, you're done :)
To save a video track without the audio in it, repeat all those steps and just hit 'disable' in the stream list, and then go to file and save as > yourvideo.avi
While we're at it, if you only want to extract the original audio without change, then hit Demux :)