Thanks for your follow-up:) To answer your questions:
1/I'm on a Mac and have installed the lastest System Software version.
2/For Lightscribing, I tried a trial of Disclabel. This being the software that wouldn't recognize the drive. I also downloaded Simple Labeler from the Lightscribe site, and this too cannot find a Lightscribe enabled drive on my system:(
3/The media I'm using is from imation although from what I've read it seems that Verbatim is the way to go.
When I use Mac System Profiler the LG drive details come up as such:
HL-DT-ST DVD-RAM GH22NP20:
Firmware Revision: 1.02
Burn Support: Yes (Generic Drive Support)
Profile Path: None
Cache: 2048 KB
Reads DVD: Yes
CD-Write: -R, -RW
DVD-Write: -R, -R DL, -RAM, -RW, +R, +R DL, +RW
Write Strategies: CD-TAO, CD-SAO, CD-Raw, DVD-DAO
Media: Insert media and refresh to show available burn speeds