I have 2 Samsung SH-S222A writers installed in my computer. I bought these at the same time from the same supplier exactly 12 months ago and up until now they have been fine.
Today I was trying to erase a CD-RW that I use for playing MP3's in the car and both drives were unhappy with the CDRW disc - saying that there was no media present, when there was. My Lenovo laptop was able to read the disc so I erased the disc on the laptop but still the Samsung writer's wouldn't see the media.
I checked the SamsungODD website and found a later set of firmware. The drives both had the original SB00 firmware installed so I downloaded the all-in-1 updater for SB02 and flashed the first drive. After the reboot the WinInquiry tool reported that one drive was indeed at SB02 whilst the other one was still at SB00. However when I ran the upgrade utility again it said the version was the same and then quit. It didn't give me an option to choose another drive.
I unzipped the upgrade package and directly ran the tsdnwin utility, which allowed me to select the second drive that was still SB00 and update it it SB02. This seemed to go well until after the reboot.
When the PC rebooted, I had no DVD writers showing on the system. Checking in Driver Manager showed a yellow triangle against one of the DVD writers and the other writer was nowhere to be seen. The error that driver manager was reporting was code 42, which means "Windows cannot load the device driver for this hardware because there is a duplicate device already running in the system".
I tried rebooting a number of times. i tried deleting the device from driver manager, but nothing worked. However when I switch the computer off and unplug the power to one of the DVD writers and then boot with just the other one running then Windows recognises the drive and it's totally happy with the hardware. This problem only occurs when both drives are connected at the same time.
The MS knowledge base says the error can be caused "...when a device with a serial number is discovered in a new location before it is removed from the old location".
The interesting thing is the Nero drive info tool shows that both drives have the same serial number - although it's reported as a string of about 20 or so accented 'y' characters rather than a proper alphanumeric style number.
Does anyone know if the Samsung flash upgrade tool trashes the original drive serial number? If so, is there any way to modify the current drive serial numbers so i can make them different, or is the serial number thing a red-herring?
Any help is much appreciated.