Check this page out - talks about one option for VMD security - and it sounds truly "uncopyable"...
http://www.nmeinc.com/technology_optikey.aspx
HD VMD Disc & Player protected by Optikey®
What is OPTIKEY® Anti-Counterfeit Technology? |
OPTIKEY is a unique, random, analog, non-periodic sub-micron structure that is generated during a finite period of time. Once this key is generated, it cannot be replicated to the same level of fidelity as the original. Repeating the OPTIKEY generation process itself results in another unique master |
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So in other words - by copying the disc, you get a slightly different Optikey value. This can then be read, but it won't match the value used to encode the data on the disc.
Either the printing press needs to be capable of re-encoding all the data for every different burn - or it has to be capable of producing an exact Optikey value/copy.
Interesting...
Gesta Non Verba
Nocturnal is helping companies get cheaper game ratings in Australia:
Wii code: 2263 4706 2910 1099