This is an interesting coincidence, I am about to set up my A2000 which has a Expansion Systems Dataflyer. It is a combination SCSI and IDE controller. I tried once years ago to set up a IDE hard drive along with the SCSI drive. The SCSI worked great, but I never was able to get the IDE drive to work. I might of missed something at the time. I look forward to seeing if I can get the IDE channel to recognize the cd-rom I installed.