Archiving otrona attache disks
billdegnan at gmail.com
Tue Aug 24 14:22:51 CDT 2021
Just for the purpose of imaging the disks, is there any reason I cant treat
these disks like any other 5 1/4" cpm 360k disk?
On Fri, Aug 20, 2021, 9:09 PM Fred Cisin via cctech <cctech at classiccmp.org>
> On Fri, 20 Aug 2021, Bill Degnan via cctech wrote:
> > Is there a simh for the otrona attache? I have some.disk images created
> > with Dunfield's utility..if not I will try to read them by using the
> > portable, which is pretty good with varied formats.
> > Bill
> Otrona is fairly straightforward for format conversion.
> CP/M and MS-DOS. There might have been other operating systems for them,
> but I didn't run into any.
> They had 40 track and 80 track drives.
> 512 bytes per sector, so they can be done using Int13h, without even
> needing Int1Eh.
> 10 sectors per track; inter-sector gaps were tight but not unreasonable.
> I don't remember whether they were numbered 0 - 9 or 1 - 10
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