Mac, you say? I bet it's an AIFF based PCM audio, instead of a WAV one. That might explain the Womble static/noise playback.
I like VOB2MPG, but you'll want to use DVD Decrypter on this disc, and extract via IFO mode. Then open the VOB in
TMPGEnc, and demux with a non-simple demux using the MPEG Tools. That will give you the M2V video and the AIFF PCM audio file.
TMPGEnc may insist on using the WAV extension, so rename it.
Then you'll have to convert with an editor. Do you have Goldwave, Audacity,
SoundForge, or something else? Audacity is freeware. I don't have to work with AIFF much anymore (and when I do, I'm usually on OS9 or OS X, not Windows), so I'm not readily aware of what works and what does not. Will take a bit of trial and error to see which programs open AIFF and can re-save as WAV.
If you want to upload that 361MB file, I can provide temporary FTP credentials, since you're a Premium Member, to a special uploads folder. I can look at it.