Ayers' comments seem to point to the possibilty that a legal concern could emerge from just by saying the code, on the grounds that it constitutes a breach of provisions of the DMCA.
The AACS LA's position is that it is illegal to say something that can be used in the circuvention of copyright. If that is true, then I'm sure millions of you are violating federal law right this instant.
Ayers also confirmed that the key had been revoked and is now useless. This will cause a problem however, for users that paid for software that use the "09 f9" media key. "As newer HD DVD discs are distributed, revocation keys extracted from those discs by player software will cause software that uses the "09 F9" media key not to work."
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Source:
BetaNews