BD+ Content Protection System OK'd for Blu-ray Discs

BEAVERTON, Ore. — Technical specifications for a new content protection system for Blu-ray discs have been released from BD+ Technologies LLC.

The new content protection system involves installing a "virtual machine" from the encoded Blu-ray disc to the player when a disc is inserted. The virtual machine installs temporary code on the player, which could serve a number of functions including correcting deliberately corrupted content that was installed to avoid piracy, watermarking the content to identify pirated copies and checking the player for hardware hacks as well as other unnamed "advanced countermeasures." When the disc is removed from the player, the virtual machine unloads and is not retained in the system's memory.

The Blu-ray Disc Association says that in order to copy a BD+-protected Blu-ray disc, hackers would have to first extract the Advanced Access Content System copy-protection keys and then defeat the title-specific security code by reverse-engineering the disc's BD+ virtual machine.

The newly released technical documents include the system design, key management rules, the System Content Participation Agreement, and the System Adopter Agreement. A new BD+ key issuing center is open, as well as test centers for BD+ player verification to verify that players meet the new specs.

For more information, visit the BD+ Technologies LLC website.

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