[RandyMcCharles]

Canada has just created a new copyright protection bill that is now pending approval. It defines paid downloads as legal and unpaid (shared) files as illegal. It also defines media transfers (eg CDG to HD) as legal. The current law is hazy. The new one is not. To my knowledge it contains no discussion on 'proof of payment'; that will be up to the courts. The download sites appear to be keeping very good records of what you paid for and downloaded, so I suspect that will be 100% required to prove you bought a specific track. I assume they also need these records to verify they are paying appropriate license fees. If that vendor goes out of business, however, your proof may get iffy.