Hi tank !
I have one LS Drive built-in ti my Notebook annd one built-in to my HP PhotoSmart C8180 Printer.
Alot of the time, I burn LABELS on the one in the printer and DATA on the one in the Notebook.
According to the Folks at LS both could be doing LABELS. I think the "Knowledge Base" in the "LightScribe Toolbox" shown above on this page contains that information.