I'm sure you're going to get a lot of "anything but LiteOn" answers to this.
However, from what I've read
, the 1673S is the best drive LiteOn has released in the 3S series. In a c't test
, for example, it did better than the Pioneer 109 with the firmware available at the time.
I own a 1213S that has been cross-flashed with firmware from various successor models. I'm now using CS0K and CS0M from the 1653S and have satisfactory results if I burn good media (MCC, RicohJpn R02, TY if I can get it) at 8x. Going to 16x saves 2 minutes (25%) and got me coasters with earlier fw (haven't tried it yet with CS0K/0M). LiteOn (and I
) generally prefer(s) + media, although the DVD-R discs I've tried have been OK too.
By "satisfactory" I mean PIF total ca. 300 and PIF max <=4 with KProbe or CD-Speed and smooth curves in transfer rate tests on the burner and a LTD163 DVD-Rom drive.
CD's have been fine, although for some reason my drive limits all burns (not CD-Speed simulations) to 32x PCAV, regardless of the speed I pick.
That being, said, if I were to buy a DVD burner today, though, it would probably be a BenQ 1640.