You think that any encryption technique that has been tried on things like this has lasted very long? They only really need to break it once and then an awful lot of disks are openly copyable.
however that would fall under the Computer Misuse act if they even attempt to break encryption. Doesnt matter if they manage it or not, its the attempt that is the crime.
Only within countries that have that as part of their law. There are commercial software packages which allege that they can back up any disk, including blue-ray and HD-dvd, in order to do this they have to have broken the encryption.