There are only two variations of the Mystery Disc (both on CD). J Rocc, himself, verified this via Twitter:
"Real quick note. My CD has 2 Mystery Disc. Not 3 like everyone thinks. The 3rd Mystey Disc is the bonus record that comes with the vinyl."
- via @jrocc, 2:15 PM Mar 23rd via Echofon
The third mystery disc included here is actually just selections from the other two mystery discs.
