This CD-R Protection is based on multi-seassion Disks, The Protection Seassion is written by Security Provider Application Called CD-X which directly access the ATAPI devices under DOS and a Protected Mode Extension. Because of Direct control over Hardware , it is able to write non-standard blocks on CD-Rs , then Developer adds CD Checking API into his application and when finished he writes the Next Seassion with his Data . Protected CDS may or maynot contain DLL files named as "CHKCDX16.DLL" . "CHKCDX32.DLL" and "CHKCDXNT.DLL"
The CRACKMASTER Term can be found on earlier Blocks of First Seassion as Label , So the Imaging Softwares Detect the "CRACKMASTER" as label most often when trying to get an Image. They most often fail because different data modes exist on one seassion. For Example , some blocks are formatted as mode1 , some as mode2 and some as audio blocks.
I have never tried to copy the protection because basically I am out of Pirates Colony , So I dont know How Javad may Backup his Disk ( May be the best way is buying what he uses frequently instead backingup protected CD ) , but I have Left this information for Later References.