@Drummerboy
I would be interested in how this works out. I also have a A2000 with OS 2.1 installed. It has a Expansion Systems DataFlyer SCSI/IDE controller. I going to try to mount IDE cd-rom. I had trouble once getting a IDE hardrive to work but that was years ago and I may have missed a step. The second option if that doesn't work, I'll try getting a SCSI cd-rom. I never had any problems with adding SCSI devices.
I was considering waiting until I get KS/OS 3.1 installed.
@anyone
How much cd-rom support does OS 3.1 have? Do I still need AmiCDFS or IDEfix97 to mount a cd-rom in 3.1? It sounds like once you get to OS 3.0 or higher you don'tset up mount list.