A poster by the name of muslix64 on forum.doom9.org has claimed, and posted a video on youtube confirming that the ‘unbeatable’ encryption system called ACCS has been cracked. It was cracked when the user was poking around in his computer’s memory, and stumbled across the decrytion title key for the test HDDVD that he was running.
The java source, and executable can be downloaded here.