It was not the only place to buy MP3s for just under one dollar, but it uniquely let me go to the store and pre-pay for a Shopping Card rather than have to put bank account information on the Internet. The trade press implied Walmart thought its service was not as "integrated" as the iTunes store, and it's true, you had to know where the MP3s would wind up on your PC and it probably cost them a lot to help novice users along; but some of us like to organize our own stuff.

Prior to that, they sold audio CDs where the customer got to select specific tracks from Walmart's entire song library; although it required us to rip to MP3 ourselves, that was a good service too. Before that, Walmart dabbled in selling files with Digital Rights Management, and now must maintain their DRM servers forever or leave their customers high-and-dry.