[QUOTE=karl0223;2016796]Is there a way to produce copies with different Serial Keys?[/QUOTE]
If your duplicator does not automatically patch the image to be used for every writer in your duplicator for the serial and checksum you’d have to do so manually.
[QUOTE=karl0223;2016796]If no, is there any data that i can read in the CD aside from Serial Number to identify one CD from another?[/QUOTE]
In the -R format the ID string and serial of the writer are written onto each disc in what I think is called ‘recording information area’. I don’t remember what additional info is written, but maybe time and date is stored too. You can use ImgBurn to read the information.