Advanced Access Content System: Difference between revisions

Revision as of 06:44, 10 May 2020

Revision as of 03:51, 15 June 2020

Line 1:

{{short description|Standard for content distribution and digital rights management}}

{{For|other AACS uses|AACS (disambiguation){{!}}AACS}}

{{short description|Standard for content distribution and digital rights management}}

{{Update|date=August 2017}}

{{Use dmy dates|date=February 2020}}

Line 37:

=== Volume IDs ===

Volume IDs are unique identifiers or [[Serialserial number|serial numbers]]s that are stored on pre-recorded discs with special hardware. They cannot be duplicated on consumers' recordable media. The point of this is to prevent simple bit-by-bit copies, since the Volume ID is required (though not sufficient) for decoding content. On Blu-ray discs, the Volume ID is stored in the [[ROM-Mark|BD-ROM Mark]].<ref>{{cite web |url=http://www.aacsla.com/specifications/AACS_Spec_BD_Prerecorded_0.912.pdf |title=Blu-ray Disc Pre-recorded Book |accessdate=1 November 2007 |date=27 July 2006 |publisher=AACS LA |page=15 |archiveurl=https://web.archive.org/web/20071106065659/http://www.aacsla.com/specifications/AACS_Spec_BD_Prerecorded_0.912.pdf |archivedate=6 November 2007 |url-status=dead}}</ref>

To read the Volume ID, a cryptographic [[Public key certificate|certificate]] (the ''Private Host Key'') signed by the AACS LA is required. However, this has been circumvented by modifying the firmware of some HD DVD and Blu-ray drives.<ref name=arstechnica-aacs>{{cite web

Line 350:

{{HD DVD}}

[[Category:Advanced Access Content System| ]]

[[Category:Digital rights management standards]]

[[Category:Compact Disc and DVD copy protection]]

[[Category:Advanced Access Content System| ]]

[[Category:Broadcast encryption]]

[[Category:Blu-ray Disc]]