hi
i am sorry that it don't work for you,
if i what to make sure that it work,
then i first i put sticky tape over high density hole,
i format it on the ST, and transfere the file from the pc to the Floppy.
make sure that the files are made under the 8.3 file naming or else the ST F..k up when you try to open it.
good luck and i hope that you get it to work.