The Casio FZ1 use a floppy drive that run at 360 RPM and not 300 like a standard PC (it's the 1.3 MO Japanese standard) .
and Omniflop cant set a standard floppy drive to run at 360 RPM with a standart floppy drive controller (I have been in contact with Jason the Omniflop Developer and he is looking at that ).
But if your FZ1 have a PC floppy drive it should work.
I have made some test before with a standard Floppy drive and it don't work for me.
If someone want modified floppy drive I have some for 20 euros +shipping cost; you can contact me Off-liste
Paul