you only offer upgrade, not original drivers. Upgrade will not work without original in pc. unit made in 2004

Support Information:
Device Type: CD / DVD
Manufacturer: Benq
Model: dw1620
Interface: IDE
Operating System: Windows XP Professional
Age of Device: Not specified
FCCID:

Type of drive: dvd-r/cd-rw (dvd burner, dvd reader, & cd burner combo)
Location: internal
What recording software are you using?: Sonic Record Now/version

Find it on DriverGuide (http://members.driverguide.com/index.php?action=srch&sm=b&aax=&qa6=1251&qa5=3&qa7=1500&dp=3&qm0=dw1620&jmd=and&fzz=d) | Find it with Google (http://www.google.com/search?hl=en&lr=&ie=UTF-8&oe=UTF-8&q=Benq+CD+%2F+DVD++dw1620+Windows+XP+Professional+ ) | Research manufacturer Benq (http://members.driverguide.com/index.php?action=getinfo&companyid=1251)

what r u talking about??? There are no drivers for this drive as none are needed. Please clarify your statement or at least state what the problem is.

DVD burner optical drives never require a driver when used in any Windows os from 95 up. Windows XP has native support that allows this drive to read a data or music disk and to burn a cd-r disk. It contains no support for burning cd-rw disks or for playing or burning dvd disks. For those 2 tasks, compatible recording and dvd decoding software is required. eg: Roxio's Easy Cd Creator, Nero and WinDVD or PowerDVD.

If you have a non-detection problem, then it's proably a result of installing and un-installing recording software. That creates a problem in the Windows XP registry whereas the upper and lower filters must be deleted.

Be sure to create a system restore point before doing the changes (or backup your registry file) as you can roll back if something goes wrong.

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Troubleshooting CD/DVD-ROM devices in Windows 2000 and XP

Many third-party programs that control CD or DVD burning (as well as some player applications) install CD- or DVD-ROM filter device drivers into Windows. These filter drivers are meant to allow for low-level hooks into the hardware, to allow for functions such as packet writing (where a CD-R/W or DVD-/+RW can be written incrementally, like a hard disk).

These filter drivers sometimes have problems that can cause the CD or DVD drive to stop working correctly. The device entry for the CD or DVD drive in the Device Manager may show up with an error descriptor that reads "The device could not start." Additionally, there may be an error message that reads "One of the filter drivers for this device is invalid." The devices themselves do not show up in Explorer. Error codes for the device include code 31, code 32, code 19 or code 39, and sometimes the even more ominous warning "Your registry might be corrupted" appears.

Fixing the problem simply involves deleting the filter entries for the third-party device drivers. These entries can sometimes become damaged (which is what produces the "corrupt registry" warning).

To delete the offending keys, open the Registry and navigate to:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Contro l\Class\{4D36E965-E325-11CE-BFC1-08002BE10318}

-->Delete the keys named UpperFilters and LowerFilters and reboot.

Several of the products made by Roxio are infamous for causing this problem, although in fairness to the company the most recent versions of their Roxio CD/DVD writing software (6.2 and higher) do not have these problems. Users of 5.0 or 6.0 editions of the Easy CD & DVD Creator product, which has been bundled with many new PCs in the past, should upgrade to 6.2 or better. Other programs can also cause this problem, with the same solution.

Note that after you do this, you may lose functionality in the program that uses the filter drivers, which may need to be reinstalled, eg: reinstall your recording software.

or u mean firmware?

link: http://drivers.softpedia.com/get/FIRMWARE/Benq/Benq-DW1620-Pro-firmware-b7t9.shtml (Benq DW1620 Pro firmware b7t9)

and

link: http://www.driverslab.com/downloads/Firmware/Benq/DW1620_1_09_M-Windows_95_98_ME_NT_2000_XP/8640.html (Benq DW1620 1.09 M Firmware)