High-Def DVD DRM schemes

While we're waiting for both Blu-Ray and HD-DVD to hit the market, we figured we'd give you the low-down the Digital Rights Management (DRM) that we'll likely see from both in one form or another. It looks like at least three possible security measures to combat unauthorized viewing or reproduction.

1. A DVD-ROM mark or "digital watermark" can be imprinted on the disc. A form of this security was easily overcome last year by covering it with a magic marker.

2. Advanced Access Control System, or AACS, requires your player to maintain an internet connection to validate security codes. If the right code isn't sent, your player can cease to function. which requires that each player have its own set of decryption keys. Once a player is compromised, new media can be encrypted with new keys.
   

3. An advanced form of Content Scramble System, or CSS encryption, which was immediately "de-CSS'd" within hours of hitting the market (and there was much rejoicing!)

Clearly, Hollywood wants some serious security on their content. Interestingly enough, Apple's iTunes is one of the best (and consumer friendly) applications of DRM out there. Wouldn't it be something if we saw some Apple software in a player that supported protected high-def video?