we have almost the same price of the two burners above sold here (about390-399rmb)
which is the better one?
i heard that 1640 seems good at the beginning but will malfunction after several months. is it true?
thx for your opinion!
get the 1693s or wait a few months for the 5s series.
lovejoy, posting the same thing more than once (crossposting) is against the forum rules, which you agreed to read when you joined cdfreaks.
Please read the rules before posting further:
http://club.cdfreaks.com/announcement.php?f=34&announcementid=37
To help with your question, see this post:
http://club.cdfreaks.com/showpost.php?p=1093303&postcount=61
sorry,sir.
i realized my mistake minutes after i posted’em but i just couldnt find out how to delete them.
thank you for your kind advice
You truly can’t go wrong with either drive. You need to assess your needs. I reviewed them both (links in signature), but I will give you the bottom line:
The LiteOn 1693S is a great all around drive. It could read faster, and it had a problem writing a DVD-RW disc. Other than that, it does very well on a wide variety of tasks. If this is your only drive, it is a very strong choice.
The Benq 1640 (I tested the Plextor 740A which is identical except for firmware) is a really fast reader. It has slightly better writes on DVD+R and DVD-R media. It also does well on both + and - rewritable media. It had trouble on the DL DVD+R disc, but others haven’t reported this problem.
Both drives are quiet, ship with Nero, and have shorter chassis.
Good luck with your choice!
I’m a BenQ 1640 fanboy. It’s got WOPR, Bit Setting enabled in the BIOS by default, is quiet, well designed, supports Burn Quality Checks, has Qsuite 2 and is like $45 or less at Newegg.
Top of the heap in this AnandTech review of 16x burners:
http://www.anandtech.com/storage/showdoc.aspx?i=2470
I got one and totally, totally dig it. 
is it true that you heard that the 1640 seems good at the beginning but will malfunction after several months ? Probably - I’m sure that I can trust you 
is it true that it will malfunction after several months ? Probably not. Never had a BenQ that failed so my guess is that you heard it from someone with a grudge.
How is anyone supposed to know what to believe when rumors abound?
I think it would be great if folks would provide LINKS to the sources where they read this stuff. It might help us allunderstand things a bit better, I would think.