Imaging Intellec MDS floppies (ISIS OS)

[Witchy]

Hi folks,

I have a few boxes of 8" PL/M source disks written on an Intel MDS-series machine, type unknown. One of the disks has 'ISIS' on the label which means it's probably an FM encoded disk, not MMFM from ISIS-II. I've tried HFE, SCP and a raw flux dump from my Greaseweazle but none of the analysis tools can make head nor tail of the resulting image contents. Is anyone around to analyse my images to tell me if the disk is actually readable? I'm thinking of Larry, Chuck here

The drive I'm using (Tandon TM848-1) reads my CPT8500 disks so I know the hardware is working.

Cheers!

 

[Witchy]

It would help if I actually provided the images wouldn't it.

HFE Image
SCP Image
ZIP of Greaseweazle raw sector dump in the style of a Kryoflux

This is labelled 'System Disk'

*edit* now with the correct bitrate and RPM settings, though they still look very blank to me.

Cheers

W

 

[Witchy]

Sorted it :D

An excellent chap called Mark Ogden saw my help request on Facebook and sent me a link to his Disk Utilities page, all for ISIS related flux dumps and images. With flux2imd I instantly got a readable hexdump of my system disk, then his unidsk utility pulled all the files out as best it could (disk errors etc).

Brilliant. I've got no idea why those pages never appeared in any of the searching I was doing over the previous few days though.

Good stuff. Now to spend the rest of the day exploring disks!