Hmmm, my best Optiarc. I’ve only owned two NEC/Optiarc drives, but I have to say the best of the two is my AD-5170S.
Great CD burner, great DVD burner, scans CDs, does TRTs, fast reader/ripper…lovely little drive. And yes, I use it, it’s in my main PC
I’m tempted to get a 72xx model…but I love my 5170S too much to replace it :o
The other NEC drive I have (4551A), while not being a hot DVD burner due to nasty relinking spikes, isn’t bad enough to be called my worst