Wal-Mart Does MP3s

Wal-Mart recently launched its own online music downloading service at www.walmart.com. Buying from the discount king may not offer the cool cachet of using Apple's superslick ITunes store, but the lower prices--per song as well as per album--can add up over time. To compare, we tallied up the cost of buying the songs and albums of Johnny Cash, our favorite man in black.

Note: The Walmart.com and ITunes stores offer different usage agreements, and the music you download from Wal-Mart--which is in the WMA format--will not work on Apple's IPod. For details, read each site's fine print before you buy.

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