The drive may be lying to you; it could have different numbers of
sectors per track in different parts of the disk, and remap them
internally to a fixed c/h/s arrangement for the convenience of the
IBM PC bios.
____
david parsons \bi/ So basically all you can reliably service going backwards
\/ is single-sector reads, and at that point you're most
likely better off zeroing the head and going forward
again.
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