Recently, a tool that helps crack DVD is released on the Internet. The program is called "GRPFF" to decode and play DVD simultaneously. Qrpff only seven lines of Perl code, once the key is consistent, you can cancel the DVD to provide digital protection content encryption system (CSS). Qrpff The Positive Positive Positive US Film Association (MPAA) has entered the stage of Decss's litigation. Decss is another program that cancels CSS for copying or watching DVD. MPAA said that Qrpff is closely paying attention to it. Legal experts and open source software supporters condemn Decss's ruling, they believe that rational use should allow references and non-commercial shared genuine materials, but DVD and CSS deprive these rights because they only allow players to play with some recognized players . Qrpff is a Massachusetts Institute of Technology Computer Sciences. (http://www.9cbs.net/news/newstopic/1/1919.shtml)
Here Is The '7' Lines Used to Decode Decss. (Sorry, Perl I won't, I don't understand, original copy) Grpff.pl $ _ = 'While (Read stdin, $ _, 2048) {$ A = 29; $ c = 1 42; IF ((@ a = unx "c *", $ _) [20] & 48) {$ h = 5; $ _ = unxb24, join ", @ b = map {xb8 , Unxb8, CHR ($ _ ^ $ A [$ H 84])} @ argv; s /
