DVDs havnt used anything like HDCP and thier protection is linear.
If you think protection systems cant be broken, then what about Sky Digital?
HDCP is fully adaptable and a lot has happened since 2001.
Have a google and see the Engadget report too, im not saying HD-DVD rips wont appear on the internet but this isnt the place to discuss it neither.
For average joe to buy his HD-DVDs or BLU-RAY and play them via PC he will need HDCP compatible display,graphics and probably Vista.
Dont think Vista has been fully confirmed yet as a requirement though.
Sony showed their latest HTPC running with Blu-Ray 200 disc changer and *special Nvidia graphics with HDMI output at LAS VEGAS CES