no luck with Amiga FFS 1.76MB HD floppies.
Of course this won't work. Modern standard floppy controllers can only read/write 720K or 1440K floppies. You can access 720K or 1440K FFS disks as made by Amithlon or AmigaOne, but never ever 880K or 1760K disks. For that you'd need a custom controller like Kryoflux or Catweasel.
