benq 1650 surely is a sweet drive.
about the service: I had a benq1640, but there was some error in the drive.
They replaced it for me and gave me a 1650 instead (by mistake).
Though it took me abt a month!
About Liteon: Liteon has the best Combo Drives available, but for DVD Writers
best Pioneer (not easily available in india)
followed closely by Benq and Sony(they are also Benq).
Liteon follows , LG, ....................................and finally Samsung.