Discs 1 and 6-15 are copied directly from Godfather.
Disc 2 contains only the multitrack mixdowns found on Godfather discs 2-5.
Disc 7 begins with the half hour track of the Bombay Friends Rehearsal, likely copied from Scorpio. The remaining ten tracks are copied directly from Godfather.
Disc 10's meta data and track information have nothing to do with Led Zeppelin.