Writing 8" floppies with SuperCard Pro

Chuck Guzis cclist at sydex.com
Tue Aug 11 19:42:17 CDT 2015


On 08/11/2015 05:27 PM, Josh Dersch wrote:

> The issue is that upon reading back a disk that has been written via
> the SuperCard, data is fine up until about cylinder 60, at which
> point bad sectors start appearing more and more frequently (though
> most of the data is still OK).  I tried disabling TG43 just to see if
> it made a difference, and it does - with TG43 disabled sectors
> written past cylinder 43 read back as garbage.
>
> I'm running short of ideas.  Anyone else have any experience with
> this combo?  Any suggestions on troubleshooting tips?

So what does the software do to compensate for bit crowding/shifting 
when writing to the inner cylinders?    That is, what sort of write 
precompensation does it perform?

--Chuck


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