I have an Otrona Attache disk, I've imaged using Dunfield's Image Disk program: https://www.vintagecomputer.net/disk_images/ATTACHE/015.IMD If there is interest, please download and create a disk and try to use the disk on your Attache or MAME emulating an Otrona Attache. Let me know if you run into any problems. I am not sure if this particular disk image results in a bootable disk or if it's a data disk (WordStar files). Bill
On Fri, Aug 20, 2021 at 9:09 PM Fred Cisin via cctech <cctech@classiccmp.org> wrote: > 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 > Zorba > > 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 > >