Driver disc included with the VST FireWire Zip250MB.

Who Needs the VST FireWire� HD/Zip Software Version 2.0.4?
? VST recommends all current FireWire� drive customers install this
update

What's Included in the Installer and Updater?
? Included in the installation of the FireWire� VST HD/Zip Software
Version 2.0.4 are the following components:
? FireWire� VST HD/Zip Support extension version 2.0.3
? VST Format version 2.0.4 (includes Firmware updater)
? FireWire� VST HD/Zip Software Read Me
? VST FireWire� Hard Drive, Zip Drive, and CardBus Card QuickStart
Guides, (in PDF)
?VST FireWire� Hard Drive, Zip Drive, and CardBus Card User Manuals,
(in PDF)
? VST Format User Guide, (in PDF)

Compatibility
? The VST FireWire� Hard Drive, Zip Drive, and associated software are
designed to run on the Power Macintosh G3 & G4 computers with either a
built-in FireWire� interface or Apple PCI FireWire� Card, a PowerBook
with either a built in FireWire� interface or a VST FireWire CardBus
card (power adapter required), or an iMac with built in FireWire�
interface. MacOS version 8.6 or later is also required. Please see the
VST FireWire� User Guide for additional compatibility information.

Compatibility
Architecture: PPC PPC (Carbonized)