Calendar note Sony Rootkits: Sony shipped CDs with a rootkit! First: What's a rootkit? Kernel mode Different meaning than "root" on Linux Next: Why would they do that? Analog loophole Quality of this solution Medium it's implemented over matters Compared to digital Audiophiles are kinda nuts How were these shared, anyway? Napster: Central organization More decentralized: Kazaa, etc Lawsuits $750 per song I wonder if LCSC blocks the pirate bay? Modern times: Youtube mostly Some related efforts: Encryption on DVDs But where would the keys be? Hard to revoke keys Sort of an impossible problem why?