26 Dec
2003
26 Dec
'03
4:48 p.m.
> 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...)