http://hd.engadget.com/2006/02/22/what-if-the-drm-on-your-dvd-player-didnt-work/ Engadget HD Comments for What if the DRM on your DVD player didn't work? http://hd.engadget.com/media/feedlogo.gif http://hd.engadget.com en-us Copyright 2009 Weblogs, Inc. The contents of this feed are available for non-commercial use only. Blogsmith http://www.blogsmith.com/http://hd.engadget.com/2006/02/22/what-if-the-drm-on-your-dvd-player-didnt-work/http://hd.engadget.com/2006/02/22/what-if-the-drm-on-your-dvd-player-didnt-work/
If they'd just kept their mouths shut, normally law-abiding citizens like me wouldn't have even thought about it. Now that it's out in the open I consider it fair game!]]>Feb 22nd 2006 4:48PMhttp://hd.engadget.com/2006/02/22/what-if-the-drm-on-your-dvd-player-didnt-work/http://hd.engadget.com/2006/02/22/what-if-the-drm-on-your-dvd-player-didnt-work/
For example, It's pretty computationally expensive to demand that the chips that handle video-processing (for things like dynamic shutters in projectors, white-balance, etc) operate on encrypted image data. It'd be a huge calculation overhead for every corrected pixel, especially for antialiasing techniques, since that would be multiple decryptions per antialiased pixel.

Much cheaper to decrypt and use a "clear" signal for processing, since a clear signal can be put through current video-processing hardware.

But as soon as you have a clear signal, someone can intercept it and bypass all the downstream copyright/DRM measures. (HDMI, MACROVISION, etc)

There will always be someone willing to break out the soldering iron and syphon clear signals off the PC board.]]>Feb 22nd 2006 5:08PM