Source: Blu-Ray.com
Thanks to Calidan for the submission.
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The BD+ Technologies, LLC is now issuing specifications for use by movie studios to begin using the BD Plus (BD+) content protection system. Essentially, BD+ is now ready for studio use on new releases. BD+ is a very fluid content protection system which allows many levels of protection from piracy, ensuring that studio content isn't copied for financial gain.
Most will note that Fox/MGM has been silent for the past few months while waiting for this technology to mature, so we should be seeing an announcement from them shortly in regards to new releases. Other studios, including those who currently don't support Blu-ray, have shown some interest as well, though it is unknown if any other studio besides Fox will make use of this technology at this time.