If you have some good links then please share them with us.
I have not found any thorough reviews yet.
If they exist, they already should have popped up on cdfreaks, cdrinfo and alike.
The Benq 1640 is not even widely available yet. I sure would like to see both the Nec 3540 and the Benq 1640 be reviewed. A comparison between the two would be icing on the cake.
Many people on this forum (including me) that are looking for a new DVD burner are considering one of these drives. It would be nice if we could get some help from the pro's about which one is the better.
I have seen a lot of 3540 scans on the forum but many still contain too much errors or quirks, while others are great. As a non-pro these did not yet convince me that the 3540 is a great drive.