The source is Maximum PC, while usually not cutting edge on optical drive burning, they are usually pretty reliable.
Both technologies are utilizing AACS (Advanced Access Content System) which uses two encrypted 128 bit keys to access the disc; one on the drive and another on the disc. The word is it might also require internet access to function.
Blu-ray goes one step further and adds another layer of content management called BD+. It looks as though this system has the ability to re-encrypt a disc copy even after the original has been cracked, adding new encryption. Also, if an exploit is discovered on a player, such as a region free firmware, the BD+ has the ability to not only refuse to play, but it can also disable the player, requiring service.
So far it is not clear how these technologies will be implemented in PC optical drives.
The old technology looks pretty good to me.