Quote:
Originally Posted by awhitehead
How strong is the system if the volume ID is known to be all zeros, and we do not know the processing key? Does a mastering house forgetting to set a volume ID on a title gives us anything in terms of finding a valid processing key? My gut feeling tells me that "not much if anything", but I'd like a confirmation.
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You are right, we get nothing. In fact VoID is not a key, but a dirty trick to avoid bit-per-bit home copying. Althought it is not a key, burning software doesn't know this value because it is stored at a reserved data area (2 reserved areas in fact), so it is not possible to do a verbatim copy of the disk.
Of course, there are "unofficial ways" to get VoID, so this dirty trick will become "broken" as soon as anybody develops the appropiate burning soft. However it is far more useful to decrypt the movie, and store it decrypted. That's the reason nobody is developing such kind of burning soft.