Are you writing your own utilities?
When I wanted to pull files off of some CPM-86 formatted floppies from
a Tektronix 4170 system I used Cpmtools 2.9:
http://www.cpm8680.com/cpmtools/index.htm
These tools are reasonably generic as far as the disk format goes.
There is a disk definition file with some known formats. None of
those appeared to exactly match the Tektronix 4170 format so I just
added an appropriate definition and then extracted files from the disk
images I read from the physical disk using ImageDisk.
I actually had to write a simple utility to reorder the sectors as
written to the image file from ImageDisk before using Cpmtools on the
disk image. ImageDisk wrote the sectors from one side then the next
side before moving to the next track. For the Tek 4170 format I had
to reorder them from one side increasing tracks, then the next side
decreasing tracks. There doesn't seem to be an obvious way to get
ImageDisk to reorder the sectors that way when writing an image, and
there didn't seem to be an obvious way to get Cpmtools to work with
the sectors in ImageDisk order for the Tek 4170 format.
-Glen