Originally Posted by madshi
Will BD+ be able to protect future discs from muslix64's soon to come BackupBluray utility?
Nope. BD+ will do little. And if anything, could make things worse. If someone hacks BD+, they can steal the bits without even hacking AACS! That is because the two systems are cascaded. AACS decrypts its bits and then hands the data to BD+. So if you hack BD+, you are done and do not need to go after AACS. And with AACS not broken in this scenario, none of its countermeasures could be put to use.
To use Ron's analogy, BD+ does indeed put a second door in front of your house, but forces you to put a large window in the back for light. Break that window and you can walk right in, without bothering with the two front doors. This is why people talk about BD+ closing one door, but opening many windows.
For their sake, I hope BDA really, really thinks through all of this before deploying BD+. Lack of understanding of security measures in software systems may have gotten us here. There is a big difference between theory and practice. Let's hope folks don't continue blindly down certain path, with new data in front of them. But if they do, let's say that they have been put on public notice
In reality, I suspect BDA security experts do know that BD+ provides no additional security. Rather, it is a DRM engine to implement other features such as region coding with more robustness against attack than simpler means. For that, it is fine, assuming consumers put up with the variability of the BD DRM system over time, implementing new features they did not bargain for when they invested in the format (and heaven forbid, if HD DVD goes away, and there won't be a competing system without those measure, to keep folks from becoming too aggressive).