5.25" had the Drivetec/Kodak in various flavors.
Fortunately,
formatting isn't an issue, because the end-user can't. Another of
those wonderful ideas that product development doesn't perceive as a
liability.
I've come across an Epson 5.25" floppy drive with an ST412-like
interface. Apparently it gets about 5MBytes o na disk. I don;t think it
was servotracked (the positioner is a nromal stepper motor) and I think
the heads are in contact with the media when it's in use. Anyone know
anything about it?
-tony