ArsTechnica has an article that says the first pirated HD DVD movie is available through BitTorrent. That’s more evidence to suggest that the time and effort that the entertainment industry puts into DRM efforts is wasted.
I don’t think there is any DRM method that has been tried over the years that has not been defeated. It thus does not offer the industry any real protection – while at the same time causes all sorts of problems for consumers.
That’s why the industry wants legal protection to make it illegal to defeat DRM. The problem is that the combination of DRM and legal protection makes it illegal for consumers to do things that copyright law otherwise allows us to do.