Nice, I did not know they made also a combo drive. But as far as I remember I used several sorts of drivers with my PB180 and a SCSI ZIP 100 (probably with help of SCSI probe or HDT mounter). Unfortunately the drive did the deadly click and I trashed it years ago. The HDT formatted ZIP disks could be password protected, like later iomega formatted disks as well. The most important feature of the iomega software was to recognize a ZIP disk automatically after insertion.