I use two programs to copy a pc game. A-ray scanner to tell me what kind of protection is on the cd/dvd. Then Alcohol 120% to make the copy. For example: if A-ray scanner says that the protection is 'safedisc', then you open up alcohol and use the 'safedisc' settings at the bottom. This adjusts the program to the right settings that you want to make a perfect copy. But remember, you must read and write to and from the discs slowly to eliminate errors. There are guides here on Afterdawn explaining how to use Alcool 120%. make sure you read the guides thoroughly or you will be wasting discs.