Looks perfectly like Futura to me, including the M and W.
As does the rest of the text on the backside. (Checked my copy.)

Really? What copy of Futura do you have? It doesn't match what I have here!

I meant my copy of the album.
The sample is rather bad quality, so minor differences are hard to tell.
If it isn’t some predigital Futura it could be Twentieth Century.

http://www.identifont.com/find?similar=Twentieth+Century&q=Go