Unfortunately, that does not help.
The driver currently shown in Device Manager is the generic cd-rom driver that comes with Windows 7.
I need the specific driver for the Matsh*ita UJ141AS. It used to be available for download on the Sony website as an executable (.exe) file.
Without that specific driver, my BD-CMB drive will not write DVDs and sometimes does not even read them. It has not worked since the reinstall I did about three or four years ago. I lost the driver and have no backup.