I am not too concerned about it. Pirates break that stuff before it hits the market usually. Just ends up costing people who have never pirated anything money and also making some of them into "pirates" themselves.
You can blame business degrees for this one since it is hard to convince a Business major that just because 300,000 copies of a movie were downloaded from the net that DOESN'T mean that they would have sold 300,000 more copies if they just had better copy protection. You might have sold 1000 more (not likely) but movie pirates tend to not be the kind of folks who buy anyways. They don't care about lower quality and lack of extras. If they can see your movie for free they will and if not then they just won't see it.
The day Harvard figures that out, they start saving a lot of money on useless DRM research.