Why did you make it with the zip you linked?
Make it the way the readme.txt says and erverything is fine!
Plextor firmware upgrade procedure for non-Windows operating systems.
- Using a recording program, burn the .iso image to a CD-R.
Note: Do not use the .iso image as a file in a project. The
recording software should be used to copy the .iso image to a CD-R, making
the CD-R an exact copy of the installation firmware.
- With the tray closed and empty, press and hold the eject button until the
LED blinks Amber 3 times.
Note: The LED will blink Green 3 times and then Amber 3 times.
Release the eject button. The tray will eject. Load the disc and close
The drive will read the disc (Amber LED) and the tray will eject automatically
if the upgrade is successful. If the LED flashes in a one-blink pattern, the ISO image
was not copied correctly or the disc cannot be read.
Reboot the system to finalize the upgrade.[/I]
It is important that Windows Vista is not running. The best way to prevent this is to go in the bios setup to prevent booting the OS and than you make the steps described in the readme.txt of the ZIP.