Info on UM8397 floppy disk IC?

From: Nico de Jong <nico_at_farumdata.dk>
Date: Sat Dec 27 00:48:13 2003

> > Well, that's old hat to me. Around 1988 or so, I suddenly got problems
> > reading "elderly" 5.25" discs on new PC's. The reason was, that the 160K
and
> > 320K capacities were "designed out" of the floppy controllers normally
used
> > in PC's
>
> Since when have the MS-DOS 160K and 320K formats been 'single density'???
> To me, single density disks use FM encoding, and the original IBM PC and
> PC/XT controllers are strictly double-density (MFM) only devices (I have
> read the schematics...)

Sorry about that, you are right. My error

Nico
Received on Sat Dec 27 2003 - 00:48:13 GMT

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