[sebhc] Hard-sectored disks

dwight elvey dkelvey at hotmail.com
Thu Feb 8 23:29:58 CST 2007

>From: Lee Hart <leeahart at earthlink.net>
>From: Glenn Roberts
> >the Apple II used 16 hole hard sectored disks.  I presume it would at 
> >be a major undertaking to get these to work on Heath hard sectored 
> >At a minimum it would seem to require a rewrite of the H17 ROM.
>It did? I always thought Apple II disks were soft sector, though the 
>recorded data format was unusual (not FM or MFM, but rather pulse width 
>Northstar computers used 16-hole hard sectored disk.

I'm using 10 hole hard sectored on my N*???
Apple II's used soft sectored format that was not one of the standard.
It used some type of run length encoding or in terms, a data scrambler.
There is no way that with or without software that I'd think you could
read it on a H17 controller, without significant hardware modifications.

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