Is there any stopping Amazon? The company has just introduced yet another retail game-changer with “Auto-Rip,” a new service that gives customers a free online version of any album they buy — or have bought on Amazon in the last 15 years. You can look at it as a two-for-one package deal on any music you buy.
http://paidcontent.org/2013/01/10/amazon-gives-free-digital-album-to-anyone-who-buys-the-cd/
So it seems any cd you've bought off amazon you get the tracks in the "cloud" and from what I've read it includes cds you've purchased as presents for others.