w95 cd-rom not working…

The CD-Rom is connected as Slave (middle shunt jumper) and w95 picks it up and identifies it but when i insert a CD for reading I get “retry” — it can’t read any CD’s. I don’t need the Config.sys and Autoexec.bat settings for it to work in w95 do i? That’s only for DOS programs right? Any hints? Have even tried another CD-rom drive in the computer.