Skip the Sony and go right to the Liteon 1693S. It is way ahead of the old Liteon burners.
The NEC is still having firmware problems, the BenQ is still having quality problems, and the LG is a good burner but has no fast ripping or scanning or simple bitsetting. It also is very close to the end of its life.
BTW, the Sony DW28 should be a Liteon 1693 but Sony is switching to another manufacturer so check it out if you do go with Sony.