Scsi cdroms are too old these days, better get a very cheap adapter for scsi-to-ide and connect yourself a ide DVDrom to your Amiga. That's how I connected a 1 Gb harddrive to my A3000 which has standard only scsi, the A3000 saw the ide drive with adapter as a nornal scsi drive. There are of course expensive options like the A-card to which guarantees high speed throughput of data but I don't think that the Zorro2 bus really needs that ...