Latest AACS crack 'beyond revocation'

The Register gives us the latest DRM gem:

"The key can be extracted after de-soldering the HD DVD drive's firmware chip, reading its contents, and then reconnecting it. The approach bypasses the encryption performed by the Device Keys, so revoking these keys as applied by the WinDVD update. Although the latest approach involves voided warranties and potential solder burns, Ars Technica adds that the ruse takes hackers one step closer to using software to achieve the same ends."