This is from Tesco Digital " What's the difference between WMA and MP3 files?
Both formats can be used for storing and playing music on a PC. Using Windows Media Player you can organize songs into libraries and playlists with cover art and even lyrics. Playlists can then be burned onto a CD to play in the car or at home. You can also copy them to a portable music player but bear in mind that while MP3 files will work with any player, including iPods, WMA songs won't work with iPods or older players."
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