Can anybody point me in the right direction to find the DOOM 2 soundtrack?

I don't know why but I have three random DOOM 2 tracks and I don't know where they came from... but they are really good.. so I'd like to get my ears on the rest.

This is going to be a bit of a bitch to track down I think..

Here you are, good sir:

http://www.megaupload.com/?d=Y1384FU3

i love you