18 Oct
2011
18 Oct
'11
3:56 p.m.
On Mon, 17 Oct 2011, Chuck Guzis wrote:
On 17 Oct 2011 at 16:53, Steven Hirsch wrote:
Ah. Sorry. I missed the 'MFM' part. In my mind when I hear "128-byte
sectors" I think 'FM'. I know those work.
Steve
--
I'm reasonably sure the Compaticard IV will
handle 128-byte sectors.
ISTR reading CP/M SD diskettes on mine.
Oddly enough, I don't believe so. The internal operation of the
PC8477 is more in line with the Intel 82077 before Intel broke it by
adding tape support (i.e. run from the 82077AA-1 as fast as you can).
Note that the problem is not 128-byte sectors per se, but rather 128-
byte sectors recorded in MFM. Even the NEC uPD 765 is seriously
broken in this respect.