Tchaikovsky - 100 Supreme Classical Masterpieces: Rise of the Masters: Explore similar items for $1.99 + free shipping
100 tracks of Tchaikovsky for just 2¢ per track. And similar collections of many other composers, including Bach, Mozart, Chopin, Vivaldi, Beethoven, Handel, etc. etc.
For the most part, these are "intact" works... i.e. if a symphony is part of the collection, every movement is recorded, in sequence. (Some of Amazon's earlier collections had random movements from various works, but not completely intact works.)
Some of these collections were previously offered for $1.29, but if you didn't get them then, get them now for $1.99... they're still a great deal! (And, based on past history with other Amazon MP3 collections, they're likely to go up significantly in the future.)