Blu-ray and HDTV DRM - fighting back

DRM is not entirely evil. If not for DRM, there wouldn't be computer games.

Ok, so maybe that's a bad example.

If not for DRM, we probably wouldn't have much of a movie industry left.

Unfortunately, DRM, lends itself to nasty practices that, in the end, benefit no-one. So it's one of many technologies that has a chaotic sweet spot -- a dynamic balance point that requires that no participant have overwhelming power. In other words, a bit like international affairs.

So, in the defense of the balance, an update on the anti-DRM forces (Dan's Data, emphases mine)...

Atomic I/O letters column #89

Blu-Ray movies aren't meant to be viewable in high definition without an HDCP Copy Control Crap chain all the way from the player to the display device...

... "HDCP strippers" are hardware devices that take a DRM-ed DVI or HDMI signal and turn it into an unencrypted one. As with the old "signal enhancers" that were actually bought by people who wanted to copy VHS tapes, the stripper boxes are sold as "DVI amplifiers" ...

Strippers work by using decryption keys that the content companies can just "revoke", though. If they do that, all movies released ... [jg: after] ... key revocation will become un-decryptable by that particular model of stripper. [jf: so how do DRMd players get the new keys?]

So, as with DVDs in days of yore, software anti-DRM measures are a better solution. The Blu-Ray and HD-DVD encryption scheme was completely cracked in early 2007; that made it possible to extract the device keys from any high-def disc player, and use them in some other piece of software, which can then output the decrypted data in any way it likes, including to any old computer monitor...

... SlySoft's commercial package AnyDVD HD was the first to let you play or rip Blu-Ray movies without DRM (and, eight months after the people who made the more advanced "BD+" anti-copying system declared it'd be unbreakable for the next ten years, SlySoft cracked that too...), but now there are various others...

In this battle we don't want the pirates to win, but we don't want the DRM owners to win either. Let us raise a toast to stalemate.