BD+ Technologies LLC announced the availability of the BD+ specifications, opening the way for the implementation of the content protection scheme in the Blu-ray releases.

The BD+ is a Virtual Machine-based technology dedicated to the Blu-ray format. Together with the RomMark, they are the additional elements of the Blu-Ray Disc Format added to protect HD content stored on Blu-Ray media.

BD+ relates to the ability to keep content from playing on a known hacked player & is an additional weapon of the AACS/Blu-Ray Disc Association against movie piracy. Implementation of BD+ is required for BD-ROM movie players and BD-ROM game consoles (PS3 for example) & BD-ROM PC Application Software.

During reproduction of a BD-ROM title, the VM runs the Content Code to apply the security Check and enable content playback when the player is legitimate. A security code runs continuously during playback in order to correct the corrupted stream & produce viewable content.

Once a hack is confirmed by the manufacturer of a suspected Player, then the Content Provider can release BD+ Content Protection code that detects and responds to the hack.

In addition, BD+ includes the ability to load native code (code that runs directly on the player's host process) It is allowed to deploy it only after it's proven that basic countermeasure code cannot address the hack.