I've bought LiteOn 20A1P and am very happy with it along with my Benq 1640 and wanted to get an H42N as reviews show it is a very good burner , but 2 days ago I suddenly found a retail Benq 1640 and bought it right away :bigsmile:
Benq 1640/50/55 are still the most popular (and best all around) DVD burners ever made and being out of production made them rare (and thus very precious)
For me , Benq 1640 (which is very similar to 1650 but maybe slightly better) produces the best results with 8X media and 16X media @8X
Newer drives like H42N and LiteOn 20A1P are optimized for higher speed 16X media @16x,18x and 20x burning speeds .
From my experience , Benq still beats newer drives writing T02 media and every time I get back to it for burning