I want to create a data cd that everyone can see but can not copy in his system.?

Question

I want to create a data cd that everyone can see but can not copy in his system.I means i want to create copy protected data cd.

Answer 1

As someone else already wrote: if you can see it, you can copy it. A small thought-experiment will ilustrate this.

Let's say the 'data' you're referring to is a movie of some type. If everyone has to be able to see it, then they have to own the software to view it with, and this software has to be wide spread (e.g., Windows Media Player).

Now... What if a hacker wrote a program that reads the data from the CD e-x-a-c-t-l-y the way Media Player does it, but instead of showing the data on the screen as a movie, it writes the data to another CD...

There is NOTHING you can do about that: either my program can read the CD and make a copy of it, or my program can NOT read the CD, but then neither can Media Player. And if Media Player cannot read it, then your audience cannot use the CD.

It's a bit more complicated than this, but not much. Unfortunately, marketing drones from big companies such as SONY are apparently too stupid to understand it (and too stupid to listen to the techies they hire) so they force their techies to keep coming up with protection schemes that annoy the people who actually buy their CD's, but not the hackers who will inevitably find a way around the protection.

Answer 2

If you can see it you can copy it.

Even if you can't do an image copy of a CD, you can copy the data off of it.
There are various methods out there that people/companies are using to prevent copying of information, but they all fail eventually.

Answer 3

Good luck. The music industry has spent millions of dollars trying to do this with no luck.

The only way you could do this is if you required a special program to view the data, and the program verified the data was on the disk in question. That's non-trivial, and it means your data wouldn't be able to be used within other programs.

Answer 4

For every lock you create, there will always be a way to crack it. Computer Games come with a lot of protection, these companies invest millions in protecting the product, but they always get pirated.

Answer 5

you may basically write information to a recordable CD-R cd as quickly as and you cant upload or delete this... i've got tried with Nero (application for burning cds) yet once you get a CD-RW this meand its a rewritable cd and you're able to erase information... desire this facilitates :)

Answer 6

Better do some serious checking. If anyone can see it, he can copy it one way or the other.