Possibly, but that's a long shot, in my opinion. If your mainboard is ACPI-ready and XP-compliant, the likelihood of a BIOS flash repairing a problem with the DVD-ROM isn't likely, especially if the device is identified correctly in the Device Manager. And, of course, your Plextor is functional, which would lead me to believe that a BIOS flash wouldn't be of much help.
After you have the chance to flash the firmware for the DVD-ROM, if you still have a problem, send me a message, and detail any errors you see on the screen. That way, I can help you discover if it's a problem with the device, or a problem due to Windows. Without this kind of information, I'm just as much in the dark as anyone else you might contact.
It occurred to me while typing this ... you do have both IDE channels enabled in the Device Manager? Is the DVD-ROM sharing a cable with the Plextor, and is it jumpered correctly? Is the cable properly connected to the mainboard? (If it's an ATA/66/100 cable, the blue end goes into the mainboard connector.)
What kind of mainboard and chipset are you running? Many strange errors that are IDE-related can be corrected by installing the latest drivers for the chipset.
Note: When you have the opportunity to flash the DVD-ROM's circuitry ... set it as the Master on the secondary cable, temporarily, with no other devices on the cable. Otherwise, the firmware upgrade might fail, or even damage the Plextor (if they share the cable). Afterwards, reconnect everything in its normal configuration, and make sure that your drive letters are correct.
Toejam31
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