a summary of what i understood all this to mean: bd+ uses a virtual machine built into a player to load an encryption scheme on a per disc basis. so the folks

a summary of what i understood all this to mean: bd+ uses a virtual machine built into a player to load an encryption scheme on a per disc basis. so the folks at doom9 were able to deduce the extents of the vm (input/output/throughput, etc) and subsequently map out the input (encrypted instructions + disc data = input). Then, by comparing the output of the (functioning) vm with the input, they were able extract specific keys with which a (single) disc was encrypted. to make this applicable across many discs that presumably do not reinvent their entire encryption scheme with every new release, they began looking for commonalities and built a conversion table that, up to page 17, is now being standardized into a packaged utility that can apply to any disc that can be decoded given their table. it's an interesting example of collaborative code breaking. as one poster said - this would make a great movie - though the audience might be a little smaller than the next bond and blu-ray not distribution format of choice.