Go to driversguide.com / company search results. Click on Funai Electric . click enter. Click download. Click O/S. Mine was Windows 3.1 . Click readme file that is highlighted. My CD-ROM is attached to a sound card. On the sound card is a set of jumpers indicating what memory address your CD-ROM is set to . Also , on the sound card , take note of where your 40-pin IDE is plugged into . Either Sony or Panasonic. Mine was Panasonic.
Anyway , after clicking the highlighted readme file, you'll see many drivers that may suit your CD-ROM.
Mine was s7 because my jumper was JP18. It was set to memory address 340H . And It had a Panasonic 40-Pin.
Download the proper file .You'll need WinZip. Click on the readme file when you start to unzip it . You'll need that info to edit your config.sys a