I burn heavy volume with digital photography. Knowing that burners have a fixed life, I bought this external drive to avoid over-using my MacBook's built-in drive, and ending up with a laptop that couldn't burn disks.
Titanium Toast and the burner worked fine on the first try.
Lightscribe is important to me, to make professional looking disk presentations to photography clients. Trying to get it to work has been a nightmare. I have figured out that the problem, apparently, is that not all Mac programs, including Lightscribe, have been updated for Intel processors. But I haven't heard this from LaCie. Their support has been pathetic - I wrote up an e-mail "ticket" which they have not responded to in over a week.
I am a lifelong Windows user who switched to Mac for digital photography. This is precisely the kind of infuriating software mismatch for which Windows is notorious, and which was supposed to never happen with Macs.