
Businessweek reports that Sony BMG is the last of the four major record labels to agree to offer their music for sale without Digital Rights Management (DRM) restrictions. The news comes a week after Warner announced it had added its catalog to Amazon's DRM-Free MP3 store.
This new DRM-free music agreement will be in place for the upcoming Pepsi/Amazon Superbowl promo, in which 1 billion songs will be given away.
These unrestricted MP3s will work with Apple's iTunes and iPod, with added benefit for the record labels to take some power away from Apple's iTunes store which continues to hold the majority of digital music marketshare.
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