If I may interject.
What drive (or what two drives) do your currently have? The Optiarc AD-7260S? Anything else? Because that’s a DVD burner, as Kerry pointed out, and a good one at that. Do you have another drive?
What drive (or two drives) are you trying to upgrade to? Are you trying to upgrade to a Blu-ray burner (which would also be a DVD burner)? Are you trying to upgrade to a BD combo drive (which could read Blu-ray discs, and be a DVD burner)?
I’d like to get a handle on if you currently have a DVD burner & a BD-ROM, a DVD-ROM drive and a BD-ROM drive, or just one drive, or what. If we can get some common lingo down, we can probably not advise you to buy something you already have. Also wouldn’t want you getting something that would be a waste.
So be careful. You say “ROM”, we think “it can’t burn, and can only read”; you say “burner” or “writer”, we think “it can do anything”. You say “DVD”, we think “it can’t do Blu-ray”. You say “Blu-ray” or “BD”, we think “It can read anything, and if it’s a burner, write everything”.