In a deal to see Amazon become the first online retailer to offer DRM-free mp3 downloads of the four major record labels, Sony BMG has finally hopped on the no-copy-protection bandwagon.

This transaction happens on the heels of an announcement of CD sales being down 15% in 2007. Even though digital sales are on the rise, the revenue shortfall isn’t being made up. With all four majors now doing it DRM-free, it’s clear that new business models and methods to boost sales are definitely getting a look in.http://news.yahoo.com/s/nm/20080110/music_nm/amazon_sonybmg_dc