Well I have a Sony RS610 Computer. It has a DW- U18A dvd writeable drive and a cd rom. One problem its only a 4x so I want to upgrade. Im looking at buying another burner. When I buy a burner can I replace my cd rom with my new burner that way I'll have two burners. If i can do this can I burn disk to disk without it having to be placed temporarily on the computer. Also can I burn two different projects to different drives at the same time. If I can do this, what speed will disk to disk burn at? will it read at 4x then burn at 8x. I hope im in the right forum if not I can go to another. Thanks for any help ya'll can offer and also any recommendations on dvd burners to buy would be nice.