Iomega Zip 100 (MAC) No Power Supply

A bit of a strange one this as I won an Iomega ZIP 100MB drive on eBay with 3 ZIP disks (one is stuck in the drive) and a 1GB Jaz Disk.

 

I have a couple of Iomega USB drives with power supplies so I can power this up and try it out but I don't have a MAC so wont be able to read what's on the disks - unless there is a program you can use to read MAC formatted disks on a PC?  I'll have to take a look and see what I can do...