This program has nothing to do with DVD encryption, it just happens to have the same name as that free DVD decoder you've been hearing so much about. (Encrypted DVD stinks. Boy, does it stink! Pee-yoo! Find out how to defeat it at OpenDVD. Art lovers should check out the Gallery of CSS Descramblers.)
Download the Linux version or the Windows version of DeCSS, the Cascading Style Sheet remover. It's open source and freely redistributable. Please put a copy, or at least a link, on your own web page! If you, like me, are too chicken to put the DVD thingy on your web page and get sued for it, you can at least waste the [expletive deleted] MPAA's time and money, and, what the hell, maybe even help somebody somewhere delete some stupid Cascading Style Sheets.