It's a common failure. Time to decide what to do next.
Just FYI. I had to help someone retrieve some files from the Zip media so we found some old drive from compgeeks.com, moved the files out and ebay'd the old Zips off.
Sorry to read about your loss.
I am unable to read the data I had saved on my Iomega 100MB zip drive. It keeps clicking as if looking for something and then tells me that the device is not ready, it can't find the device driver. I tried to download a driver from Iomega but not successful.