this was in the news again recently
"DVDs will be harder to copy thanks to new anti-piracy measures devised by copy protection firm Macrovision. The pirated DVD market is enormous because current copy protection was hacked more than five years ago. Macrovision says its new RipGuard technology will thwart most, but not all, of the current DVD ripping (copying) programs used to pirate DVDs. "RipGuard is designed to... reduce DVD ripping and the resulting supply of illegal peer to peer," said the firm. Macrovision said the new technology will work in "nearly all" current DVD players when applied to the discs, but it did not specify how many machines could have a problem with RipGuard.
Some users have expressed concerns that the new technology will mean that DVDs will not work on PCs running the operating system Linux.
any updates on when this is due out ?