The music industry years ago lost much control of its CD, which is not encrypted, to peer-to-peer file-sharing services and technology allowing CDs to be burned easily -- even by the technologically unsophisticated. Now Hollywood worries that RealDVD and other fledgling DVD copying services will ruin the market for DVDs.First of all, marvel that Big Content still hasn't grasped the lessons of the Internet age, importantly in this context that all you need is One Smart Cow -- it doesn't matter how easy it is to rip CDs or DVDs, if they're uploaded to the Internet everyone has access.
Hollywood is already reeling from open-source DVD decryption software that is free on the internet. It also says it's losing billions in sales because of BitTorrent tracking services like The Pirate Bay that allow users to upload and download decrypted movies and other content for free.
DVD Decrypter and Handbrake make all of the MPAAs protestations about controlling their content via encryption worthless and silly. DVD sales are doing fine, once you consider that America is in kind of rocky economic straits right now.
This is still basically the Napster gambit: if we sue enough people, we can keep precious control of our content. I think it's ridiculous, but when you've got more money then brains there's a bunch of things that look appealing I guess.