Actually, this is true for Blu-ray. The BD+ allows BR manufacturers to render a player key unusable, and it can apply this copy-protection to specific models and even whole manufacturers (if, for example, a hardware hack was created for a specific player.) Future discs would not play on your player until you connected it to the internet to get new keys. Oh, and you will have to pay for these future updates as well.
Actually, this is true for Blu-ray. The BD+ allows BR manufacturers to render a player key unusable, and it can apply this copy-protection to specific models and even whole manufacturers (if, for example, a hardware hack was created for a specific player.) Future discs would not play on your player until you connected it to the internet to get new keys. Oh, and you will have to pay for these future updates as well.