Emax

Hello Emax users

I recently bought one of these. I have loaded the o.s. (emax3.2) 
onto three different DD floppies using the EMX software...each time 
for each disk the same outcome - it says loading software and goes 
tick tick tick duh, tick tick tick duh ....(my best attempt at 
describing the sound of the floopy drive). 

Is my drive screwed?

If so any ideas on replacement drives? emualtor.com mentions the 
following:
The Emax floppy drive was orginally a NEC, but later models have a 
Mitsubishi Full Height 3.5" MF353B - 12 UJ or MF353BA - 12U. 

however on ebay neither of the two mitsubishi models are mnetions

Many thanks for your help...really appreciate it!!

G