On Mon, 5 Sep 2022, jim stephens wrote:
The unit I have is IBM.

There was no floppy drive unit from IBM for the IBM 5100.
Or do you have a model number?

It only did single sided diskettes, low density.  It's the only device which

The IBM 5114 handles single and double sided diskettes, as well as FM and MFM, so up to over 1 MB per floppy.

I've ever had which could write deleted sectors.  The formatting on the diskette is very similar to the tape formatting with two EOT records followed by the remainder of track 0 padded out with deleted sectors.

??
Now I'm curious. What floppy drive system exactly are you talking about?

Christian

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