As you may be well-aware, Operation: Doomsday was the debut solo album by MF DOOM. It originally dropped back in January 1999 and then reissued in 2001 in very limited quantities. The project is available on iTunes as of 2007, and today a fan put together a mix of all the samples used in the project. Roy Ayers, Sade, Boogie Down Productions, The Spinners and The Beatles all made an appearance, and are just a few of the names on the mix. Press play below to hear, enjoy.