Macrovision purchases BD+ DRM for $45 million

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Philihp @ Nov 26th 2007 3:45AM

Yes, you can. Unlike the security scheme in HD DVD, BD+ is renewable. It can be broken, but fixed. Windows Media format files do something similar, and WMV has been broken many times. Every time it is, Microsoft releases new updates to secure future playback. Similarly, each Blu-ray disk carries the virtual machine software package on it necessary to decrypt itself for playback. If BD+ is broken, this just means you can decrypt any Blu-ray disk that currently exists, but not any future releases (or future copies of current movies).

It has yet to be proven if SlySoft's AnyDVD will work on future Blu-ray releases. The image above, which was meant to be intimidating is just a relabeled version of Figure 7 from http://www.cryptography.com/resources/whitepapers/SelfProtectingContent.pdf

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Philihp @ Nov 26th 2007 3:45AM

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