Running through this whole convoluted tale are two consistent threads. DRM is used as a weapon not against infringers but against market rivals. And when companies use DRM to undermine compatibility, law-abiding customers lose.
Interesting article on the devious machinations of the powers that be in their quest to control the information we consume. DRM stands for Digital "Rights" Management, though the only rights DRM protects are the rights of record companies to screw artists and consumers.