Hi gizmo, could I ask for some more exact details of your problem? I agree, don't do anything to the disks until we're clear on exactly what type of recovery we are contemplating.
Tell me if I've understood the situation correctly:
It seems you've originally formatted the disks with FDFORMAT to high capacity, eg 1.72M, and previously transferred files across from them with the MOVE command, hence deleting the files that were on the disks. You're hoping to be able to use a recovery utility as you have in the past to restore the files' directory entries, recreating the original filenames by remembering what character has been overwritten with the "deleted file" marker. Correct?
If so, I'd be inclined to try showing one of the disks to the freeware PCInspector program, to see if the files can be recovered that way:http://www.pcinspector.de/Sites/file_recov....htm?language=1
I think the high capacity format shouldn't be a problem working through Windows, which is used to Microsoft's own high capacity format, unlike the older versions of DOS. PCInspector won't make any changes to the disk, allowing other recovery options if it is unsuccessful.
In my experience, high capacity formatted disks wwere also more prone to data corruption, due to being pushed beyond their conservative "safe design" parameters.