Quote:
Originally Posted by arnezami
I was mostly referring to Volume and Media Variant Keys which you definitely need to decrypt all the content (otherwise you would miss like 1% or something and the video would basicly be broken at certain parts). This is the nastiest part of AACS in my opinion and I wonder when (and if) they will use it. Hopefully later than sooner.
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I thought the variant keys were used so that AACS-LA could track down which device had been compromised, from small differences introduced into the video and audio streams.