Amazon.com (NASDAQ: AMZN) and Sony BMG, a joint venture of Sony Corp. (NYSE: SNE) and Germany's Bertelsmann Media Group, announced yesterday that Amazon's new MP3 store will soon carry the label's entire catalog. This move makes Amazon.com's MP3 store the only digital store to offer consumer's Digital Rights Management-free MP3 tracks from all four major labels, with Sony BMG joining privately-held EMI Group, Warner Music Group (NYSE: WMG), and Vivendi (OTC: VIVEF)'s Universal Music Group.

Previously, Sony had announced a new promotion of album cards, which would allow listeners to download DRM-free MP3s, but it was limited to only about three dozen albums. The new agreement brings the entire catalog to Amazon.

The major point here is that Amazon's store now offers tracks that are playable on virtually any platform or device, from Microsoft (NASDAQ: MSFT)'s Zune and Apple (NASDAQ: AAPL)'s iPod to various off-brand players. In a press release given to Ellen Livshin of OutCast Communications, Amazon.com Vice President for Digital Music Bill Carr revealed this very fact: "Our Amazon MP3 customers will be able to choose from a full selection of DRM-free music downloads from all four major labels and over 33,000 independents that they can play on virtually any music-capable device." U.S. Sales head for Sony Thomas Hesse echoed these sentiments and added that the label is "excited to be working with Amazon as they continue to build new markets for digital music."

I've remarked before that the Amazon.com MP3 store would increase competition and drive the digital market forward, and with this announcement it seems that many predictions about the online music realm are being realized, albeit much earlier than expected. Many had pointed to mid-year as the time when DRM technology would disappear completely, but as we can now see, that timeline will be January, at least for one store.

The move is also a potentially devastating blow to Apple's iTunes Store, which had headed up the move away from DRM but has not great success, managing to score only the EMI catalog early last summer. Whatever the case may be, the Amazon.com move will increase the competition and hopefully begin the revitalization process the music industry needs. All they have to do is promote it and get consumers interested.