I have a way to create 800kB GCR disks on a PC floppy drive (with a little extra hardware),
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So the good news is that I can make bootable 800kB floppies with PC floppy drives!
Interresting! What are you doing, if you like tell us more?
it just says 'Error -72' with no other information;
error -72 is: "badDCksum: bad data mark checksum" but you already found out yourselve for sure, didn't you?
I need a list of track, side and sector of the bad sectors. Does anyone know of such a thing?
I've never heard about such a utility. Usually all Mac tools are for simple data-rescue like directory rebuilding or similar. I never saw any hardware information like tracks, sectors, etc.
The first try is always with Apples "Disk First Aid".
Usually I swear on Disk Warrior 2.1.1, but I am not sure if it handles Floppys as well? Does anyone know?
For Floppys MicroMats TechToolPro 2.5.5 shall be the best one.
BTW Alsoft and MicroMat are still in business, and I am quite sure they still sell Mac OS 9 software if needed.