The universal HD DVD movie passcode for now...

The code that can be used to help break the copy protection in HD DVD movies

09 F9 11 02 9D 74 E3 5B D8 41 56 C5 63 56 88 C0

"When DVD lawyers say, 'Stop,' online community revolts"
http://www.signonsandiego.com/uniontrib/20070503/news_1n3code.html

Another article
http://www.windowsitpro.com/mobile/pda/Article.cfm?ArticleID=95978&News=1