The Amiga 1200 (or any model, actually) can be picky about IDE and SCSI drives. This is true of hard drives and CD-ROM drives. My A1200 is now using a 4.3 Gb Hitachi hard drive as the boot drive, I have tried to use drives of this same make - none work. My A1200 also refuses to work with Creative CD-ROM drives. We'll have to ask David Haynie about this one. It's a problem that's been around forever.