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BD+
BD+ is a component of the Blu-ray digital rights management system designed to prevent unauthorized copying or playback of Blu-ray discs.
BD+ was developed by Cryptography Research Inc. (CRI) and is based on their Self-Protecting Digital Content (SPDC) concept. BD+ was adopted by the Blu-ray Disc Association for protecting Blu-ray discs.
While BD+ has not stemmed the flow of "cracked" high-definition content, it has made it necessary for those who wish to copy Blu-ray movies to reinvest resources to break each new version of security code.
BD+ played a pivotal role in the format war of Blu-ray and HD DVD. Several studios cited Blu-ray Disc's adoption of the BD+ anti-copying system as the reason they supported Blu-ray Disc over HD DVD. The copy protection scheme was to take "10 years" to crack, according to Richard Doherty, an analyst with Envisioneering Group.
In November 2007, the SPDC business unit and technology was acquired by Macrovision to complement its existing Analog Copy Protection (ACP) and Ripguard technology.
In 2011, Irdeto acquired SPDC and BD+ from Macrovision (then known as Rovi Corporation).
BD+ is effectively a virtual machine embedded in authorized players. It allows content providers to include executable programs on Blu-ray Discs. Such programs can:
If a playback device manufacturer finds that its devices have been hacked, it can potentially release BD+-code that detects and circumvents the vulnerability. These programs can then be included in all new disc releases.
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BD+
BD+ is a component of the Blu-ray digital rights management system designed to prevent unauthorized copying or playback of Blu-ray discs.
BD+ was developed by Cryptography Research Inc. (CRI) and is based on their Self-Protecting Digital Content (SPDC) concept. BD+ was adopted by the Blu-ray Disc Association for protecting Blu-ray discs.
While BD+ has not stemmed the flow of "cracked" high-definition content, it has made it necessary for those who wish to copy Blu-ray movies to reinvest resources to break each new version of security code.
BD+ played a pivotal role in the format war of Blu-ray and HD DVD. Several studios cited Blu-ray Disc's adoption of the BD+ anti-copying system as the reason they supported Blu-ray Disc over HD DVD. The copy protection scheme was to take "10 years" to crack, according to Richard Doherty, an analyst with Envisioneering Group.
In November 2007, the SPDC business unit and technology was acquired by Macrovision to complement its existing Analog Copy Protection (ACP) and Ripguard technology.
In 2011, Irdeto acquired SPDC and BD+ from Macrovision (then known as Rovi Corporation).
BD+ is effectively a virtual machine embedded in authorized players. It allows content providers to include executable programs on Blu-ray Discs. Such programs can:
If a playback device manufacturer finds that its devices have been hacked, it can potentially release BD+-code that detects and circumvents the vulnerability. These programs can then be included in all new disc releases.