There are milllions of these questions, typically, and they don' t really get answered, the reason why is
1/ most would rather discuss the minutae ins and outs of things and not really answer these, too, because there are so many of these questions, and
2/ there is no answer to a best dvd period, they all have different strengths and weaknesses its down to your objective, for which you are largely expected to search for in the forums, the answers are there.
that's why the questions don't get answered anymore, personal preference, brand loyalty, and answers have been said.
there is no answer, any of the 5 should suffice, liteon, samsung, lg, optiarc/sony, pioneer take your pick.you shouldn't go far wrong with any really
don't get anal and too caught up with it, its an easy mistake to make
anyone considering posing a best burner question would do well to read this and understand the forums position now on this.
perhaps a sticky could be made saying that? the questions will continue and people will think its rude not to be answered but that's why.