SecurityFocus has a good interview with Root Labs' Nate Lawson, who worked on BD+ while at CRI and who was quoted in these pages back in April of this year. Commenting on Blu-ray BD+ programmable security, Lawson says:
When we designed BD+, our goal was to let studios spend the money developing the security on a per-disc basis. All the player manufacturers had to do was provide a simple, compatible VM environment. That way if a studio cares more about protecting a particular title, they can put more effort behind its software protection. They are in the best position to measure if the DRM impacts their sales and decide how much to spend on it in the future.
That's the exciting thing for me about BD+. It's really the first time these principles have been brought into play in the mass market. It's an opportunity to prove if common memes about DRM are true or not. How much more money does a title make if it's not available on pirate networks for a few months after release? That's a question you can't ask with DVD since there is no example to use.
This year should be very interesting.