Floppies Backup - Disk Images

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have a look at whdload page.
IIRC theres wwarp, mfmwarp, OWS..
some DMS versions supposedly can read IBM formatted floppies, including HD ones
 
but maybe you cannot recreate the copy like in protected games. (do you by any chance know if the originals were created with standard drive?)

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I remember one funny thing when trying to make images with mentioned programs; you could get two different output files even with same settings on a same floppy drive and diskette.

Guess you ought to use them on a high quality drive, it seems to me they can't use error correction because of lowlevel access.