Saw instore at Tesco several classic rock 'best of CDs for £3 including my personal favourite Mothership: The Very Best of Led Zeppelin remastered (2cd).
Motorhead - The Ace of Spades (best of)
Dio - The Collection
Leona Lewis - Echo
Rainbow - collection
T-Rex - collection
Chicago - best of
Earth Wind and Fire - best of
Toy Story 1 (original soundtrack)
Toy Story 2 (original soundtrack)
Lots of others that I can't recall I am afraid.