Operating System: Windows 98SE (Note: might work with other versions of this os.)
After downloading this file, double-click it in Windows Explorer to start the extraction process. Accept the default unzip folder (c \cdrw400-fw) then click the UNZIP button. Includes a upgrade.doc file so read it first.
Note I nor driverguide.com accept any responsibility for damage done to your burner by using this file incorrectly. Use at your own risk.