There are many myths about Game Duplicating:

1. Some CD Burners Cant burn PC Games (False)
2. The Program used to Backup doesn't really matter  (False)
3. All PC games (Without the use of Patches) can be successfully Backed-up (False).
4. The Brand of CD media used is important (False) 

The Following programs are what many people have recommended and, what I personally recommend.

Clone CD (By Elby Works )

Alcohol 120% Burning Utility (By Alcohol Software) 

Nero Burning Rom (By Ahead Software)