oh yeah I heard about that. My sister used to play classical music to her baby when she was going to sleep until she was about 2 yo. I tried sleeping in the same room a couple of times, but found it a bit annoying I must say. And her daughter didn't exactly grow up very calm... But hey, the idea itself is v good I think, and certainly won't do any harm!
sorry, I can't actually recommend a CD - don't know any Just in a chatty mood