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The releases come as some high-tech and music-industry executives are becoming increasingly concerned about Apple's growing clout in the music business. Only online music files purchased from iTunes, ripped from users' own CDs or downloaded from pirate services can be played on the popular iPod. Copy-protected songs purchased from Yahoo and other legitimate sources don't work on it. By selling music in the MP3 format without copy-protection software, Yahoo can offer music that works easily on iPods.
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Smart move, but too bad they are doing it just to kill Apple and not because they recognize that DRM is not good for costumers.