The most useful way to think of Murfie is as a virtual second-hand music store. The idea is you send Murfie your CDs and they can rip them for you, or you can on-sell them. While the site also sells new CDs most of the trades are in ridiculously cheap used music, which for the conscientious means that the artist doesn't receive any money. As the last bastion before outright piracy Murfie is a good way to find music unavailable elsewhere.