like what CDROMs you have -
you sure you are copying to the right unit and that it is a burner??
Also see if both units are listed in device manager and that you have DMA selected.
Also check that you have the master/slave pins set correctly.
Unless you tell us about your hardware (as requested in red) or a little bit about what you have done to maybe fix the problem we cant be of much help.
i try to copy a files from cd to cd but i cant copy it.i try un check the box read only.it thesame..i use combo cd room..