The information below and what it is about IS the sole reason I DONT LIKE BLU RAY. It will suck when blu ray becomes the standard and then everyone starts complaining about how they wish they could back up their movies and do other things like put them on personal media devices. But YOU WONT BE ABLE TO. SONY IS A **** COMPANY WHO IS TRYING TO FORCE ITS DRM (digital rights management) BULL**** INTO EVERY CORNER OF THE ENTERTAINMENT INDUSTRY. Its been one thing after another most recently: HDMI and NOW BLU RAY. THIS IS BAD FOR US CONSUMERS but noone will realize it until its too late. I am well aware Sony is not soley responsible for coming up with blu ray but the fact is it wouldnt even be competing with hddvd if they hadnt put it in their PS3. They knew this would cause a spike in blu ray support and movies bought.
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blu ray is evil and "anti consumer" - bill gates
Advanced Access Content System (AACS) is a standard for content distribution and digital rights management. It is developed by AACS Licensing Administrator, LLC (AACS LA), a consortium that includes Disney, Intel, Microsoft, Matsu****a (Panasonic), Warner Bros., IBM, Toshiba and Sony.
Since appearing in devices in 2006, several successful attacks have been made on the format. The first known attack relied on the trusted client problem. In addition, decryption keys have been extracted from a weakly protected player (WinDVD). However, even though some AACS cryptographic keys have been compromised, new releases will use new, uncompromised keys.[citation needed]
BD+ was developed by Cryptography Research Inc. and is based on their concept of Self-Protecting Digital Content.[54] BD+ is effectively a small virtual machine embedded in authorized players. It allows content providers to include executable programs on Blu-ray Discs. Such programs can:[52]
- examine the host environment, to see if the player has been tampered with. Every licensed playback device manufacturer must provide the BD+ licensing authority with memory footprints that identify their devices.
- verify that the player's keys have not been changed.
- execute native code, possibly to patch an otherwise insecure system.
- transform the audio and video output. Parts of the content will not be viewable without letting the BD+-program unscramble it.
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 content releases.
The specifications of the BD+ virtual machine are only available to licensed device manufacturers. A list of licensed adopters is available from the BD+ website.
BD+ was made available for content publishers in June 2007.[55] The first titles using BD+ were released in October the same year. Several players had problems playing back those titles.[56] BD+ has been circumvented by the developers of the program AnyDVD as of version 6.1.9.6 beta.[57]
BD-ROM Mark is a small amount of cryptographical data that is stored physically differently from normal Blu-ray Disc data. Bit-by-bit copies that do not replicate the BD-ROM Mark are impossible to decode. A specially licensed piece of hardware is required to insert the ROM-mark into the media during replication. Through licensing of the special hardware element, the BDA believes that it can eliminate the possibility of mass producing BD-ROMs without authorization.
When the first AACS keys were leaked, some Blu-ray titles became available on file-sharing networks. There is also a commercial PC software player (AnyDVD HD) that allowed users to watch Blu-ray Disc movies on non-HDCP compliant PC hardware or copy them.
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