Kinda hard to tell from just that. I think the easier way to do it is to take out the CD-RW and jot down the numbers/model on the drive and search on Google. Cendyne used to sell rebadge Lite-On drives but I haven't been keeping up with tech news lately so they might be using someone else. How are the drives plugged in? Both optical drives on secondary channel (one set as master, the other as slave)?