" The 40-bit encryption used for CSS in DVD is sufficiently weak enough to
be cracked using a recursive brute-force technique during the program's
runtime. To make matters worse for movie companies, the encryption also
contain a number of flaws or weak points which can be exploited to bring the
cipher complexity down to an exponent order of 25. This makes cracking DVDs
even easier. "
FULL STORY @ JUNKIE (http://www.tech-junkie.com/articles/2000q3/backupdvd/index.shtml)
