Ars Technica reported last week on a Hollywood Exec's admission that DRM, for them, is not about piracy, rather about control over the way people interact with copyrighted works.
If we believe Ronald Grover's sources in his BusinessWeek article of last week, the problem is liberal DRM and not piracy, and this is a startling admission. According to him, an unnamed studio executive said that a major reason why studios weren't jumping on board with the iTunes store and other similar services is that their DRM is too lax. "[Apple's] user rules just scare the heck out of us." It's not piracy that's the concern, it's their ability to control how you use the content you purchase.