Thanks kevdriver, the machine I use is a P4 3Ghz with 2GB PC3200 Ram and 2 Pioneer 111 drives and 2 250GB SATA drives. I was looking for something similar to what Nero does. So if I add them to queue I can burn the first then the other or burn both using different speeds on each drive. So if I use TY GO3 16x, one burner @ 8X then the other burner @12X at the same time it will be close to a duel burn.