So I recently found out which sample CD was utilized in Metroid Prime's soundtrack! It's this old disc called Uncivilised G'rooves, and I managed to acquire the files through (mildly questionable) means. Shhh. It's an old ass CD that's no longer in print and the company went under in 2004, so it's functionally impossible to snag.
I fell in love with MG2's soundtrack, as it was incredibly ahead of its time. I've been wanting to find and utilized Prime's synths and percussion tracks, especially the percussion as they are iconic to that game's industrial and alien sound. I had this idea to incorporate a small tinge of Prime 1's percussion into this track and I have to say, I think it blends together rather smoothly.