Protecting CD content from being copied.

I want to protect CD contents from being copied to another CD or to any other destination. Is there any technic for this? I know this is impossible but there must be some mecahnism so that a cd isn't copied on other CD. If someone know any protection method high or low plz let me know.

Try SafeDisc from Macrovision. There's really no way to guarantee that the CD can't be copied short of physically damaging the disc (which some folks do), however.

Bear in mind that I don't condone this sort of thing - you're really screwing over people who want to make a backup if you're selling them something like software (solution? Provide a backup for them - if they give it away it's their own stupid problem). Despite what idiotic things might come out of Jack Valenti's mouth, digital media DOES NOT last forever... especially since it's delivered on something as delicate as a CD or DVD.

The funny thing is, I just bought a copy of a piece of
software called Alcohol 120% That allows you to create backups (burn/hard drive)
of any copy protected disc. All you need to know is what type
of copy protection the disc uses and it will take care of it. I don't
use this for anything kooky, I just ruined too many discs going
back and forth to LAN parties and needed something to help
me save $49 a whack when i get too drunk and ruin my CDs
on the walk home.

Alcohol 120% - meet my little quoted friend

I'll bet it can't copy physically damaged CDs. That's a "flaw" that CD Burner (usually firmware) simply won't tolerate. It will play just fine because the damaged portion is never touched, but when it comes time to make an image, the burner craps out because it thinks the CD is damaged.

One cheap way to "protect" your CDs is to burn them to 80 minute discs. A lot of people just buy the cheap-o 74 minute discs, so when they try to copy the 80 minute CD to their 74 minute disc, it'll bomb out and say the image is too big. I imagine there are a lot of people out there who are too dumb to "circumvent" this type of protection.