“We hope you are enjoying the increased music quality/bitrate and the improved usability of Walmart's MP3 music downloads. We began offering MP3s in August 2007 and have offered only DRM (digital rights management) -free MP3s since February 2008. As the final stage of our transition to a full DRM-free MP3 download store, Walmart will be shutting down our digital rights management system that supports protected songs and albums purchased from our site.” source...