You will need a 25 pin to centronics scsi cable. The external cdrom already has terminator on it. Then you need a cdrom driver, you can use the one from wb3.1 or any other commercially available one like amicdfs. Easier to setup than wb3.1. Remember to select the right scsi device and all should work. It seems the cdrom is set as id 5, which is fine, as long as your hd is not the same id. You can check the id with sysinfo and the scsi tab, before you connect the cdrom.
Enjoy!:pint: