AACS Sucks, Advanced Access Content System

Everyone…the boycott starts NOW!!! Why bother with HD-DVD and BluRay anyways?

In addition to the DRM mess, the image quality will not likely impress the average Joe to make it worth their while.

And, even with the small difference, you can still achieve respectable results using a decent DVD player that can properly de-interlace and upscale 480i video. And, on top of that, the AACS DRM malarkey is a non-issue with DVD-Video.

I think DVD was made too well in that it may end up like the CD; obsolescence and inferiority that is not readily noticeable on average, if at all, and sure AACS will work at launch, but that won’t last long.

In AACS, each player device is assigned a DeviceID (which might not be unique to that device), and is given decryption keys that correspond to its DeviceID. When a disc is made, a random ‘title key’ is generated and the video content on the disc is encrypted under the title key. The title key is encrypted in a special way that specifies exactly which devices’ decryption keys are able to extract the title key, and the result is then written into a header field on the disc.

When a player device wants to read a disc, the player first uses its own decryption keys (which are specific to the player’s DeviceID) to extract the title key from the disc’s header; then it uses the title key to unlock the content.