WAD Files : Ripping and Stuff...

Here goes,

I played a game and hypnotized by the music within. Naturally I think it would be nice if I could get them inside my mobile device; That would be cool.
I found a file inside the dvd. It's called MUSIC. Hell of course it contains music. The file format is .WAD. So it's MUSIC.WAD. It's about 350 Megabytes, so I'm sure as hell it contains exactly what I want.

How can I possibly decode the file so I could listen to the music on my pc?

If anybody could tell me how, I'd be delighted; I wish him/her would be granted heaven

What game is the soundtrack for?

Here is a website that was recommended by I AM WILLIAM H. MACY that has a lot of video game soundtracks and most of the files are in .MP3 format:

http://gh.ffshrine.org/

They have a lot of soundtracks.