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How Can I Copy CDs Locked By Points on the Readable side of cd?

that is similsr to this picture



http://www.geocities.com/ali_hajihatam/cd.jpg[/url]

That's a new one to me, so I won't be able to help. But I would be interested in hearing more about what this is. What CD came with this protection? Do you have any other information about it?

cfitz

Anyone know more about this interesting CD protection technology?

This is Not new in Iran
I saw this protection 3 years ago
some programers in Iran who want not to copy their program and copy their program CDs by CDcrackers , lock their CDs by this protectin

Hmmm. I wonder if the idea is defeat copy protection programs like CloneCD and BlindWrite that attempt to read every raw bit on the disc and duplicate the same. I imagine the points truly are unreadable, rather than being nonsense data, and don't even have a good groove tracking through them. If they are large enough that would cause the laser to lose lock and get all confused. So maybe with this sort of copy protection you can't just blindly read all the bits but instead must know where to seek around the bad dots.

When you look at the CD, can you tell if there is nothing at all written in the ring that that contains the dots, or does the silvered layer look the same across the whole disc with the exception of the dots?

Just musing. Anyone have definitive knowledge?

cfitz

Is it anything like this:

http://www.cdmediaworld.com/hardware/cd ... rors.shtml

cfitz

Yes it is similar to it
thanks for guide
if I copy the CD I will say how to do it