* the 765 only does standard track formats (preamble, marks and data fields), while the 179x will write anything you tell it in the write track (formatting a track) mode.
NoteSome other computers adopted 3inch floppy disks but used different FDC chips: While the * [[Oric-1/Atmos|Oric]] uses the same 3inch floppy disks as the Amstrad CPC, it uses the WD1773 (Jasmin) or WD1793 (Microdisc) FDC chip.* [[Tatung Einstein]] uses the WD1770 FDC chip
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