My son has taken it upon himself to do a presentaion for his next year college exam. He has chosen to talk about commercial dvd protection. One student is doing the psp and its hacked protection already. Another has done drm . He has to do a 2 hour presentaion to be aceepted and marked for his 2nd year. Hes decided to do dvd css encryption of which he has written a very informative presentation.
Here is where his problem lies they have to do a fight back bit where the manufactures came back at them. The upgrade of the psp roms. Arcos added to the standard etc.
No where can he find exactly what arcos did, or does to a discs format, puppetlock for instance. Im after to try and help him and god knows why he chose this. The old extractor programs failed after the companies fought back because they did this. They added this to a disc header like this bytes which made it go here but was ignored by the disc but picked up because etc.
Im not after anyone writing his thesis / presentation he must do this part himself as they do very stringent internet checking search programs on the papers to make sure its not copied and pasted. Can anyone point me in the direction of any informative explanation articles explaining so he can do his homework on this. He will thank everyone for any help they can give for him.
i found bits like this
Sony’s ARCCOS protection system has been in
use for a few years now, but it wasn’t on the early DVDs. It was
specifically designed to exploit certain assumptions that the authors
of ripping programs used to speed up their programs.