Disk won't format from TOS 1.04 if Ultrasatan is plugged in.

[exxos]

That was doing my head in last night. If I select Optimised I get a Cannot read FAT at the end of the format. When I select TOS it works stating 728064, but...TOS 1.04 displays it as 726016. Fast Copy 3 is better for a novice like me because it's hard to screw it up.

Never had that issue in the 30 odd years I been using floppies. Maybe your drive is a bit iffy, or the floppies, or your machine needs some mods.. but there really shouldn't be any reason why either format should fail.

[Cosmic Puppet]

That was doing my head in last night. If I select Optimised I get a Cannot read FAT at the end of the format. When I select TOS it works stating 728064, but...TOS 1.04 displays it as 726016. Fast Copy 3 is better for a novice like me because it's hard to screw it up.

Never had that issue in the 30 odd years I been using floppies. Maybe your drive is a bit iffy, or the floppies, or your machine needs some mods.. but there really shouldn't be any reason why either format should fail.

I have had problems with it from the get go. It operated appallingly in TOS 1.00 Then I discovered the cable end was faulty and I had to crimp a new end on it (the tool cost me £20!) Then the psu recap seems to have gotten rid of the occasional TOS Error #35.

Do you think I could have damaged it last night when I accidentally tried to format HD? The head made a horrid sound.