Floppy disk: one drive per face

[ben]

On 11/5/2020 12:04 PM, Enrico email.it via cctalk wrote:
> 
> We are trying to read some floppy disk used on a 1981 Italian Z80 machine
> with CP / M.
> 
> The problem is that the firmware selects face A of the floppy as DRIVE A and
> face B of the same floppy as Drive B.
> 
> We saved an image with IMD and we know that the geometry of face A is IBM
> 3740 26x128x77 tracks.
> 
> By inserting this data into the 22DISK definition file we can successfully
> extract the CP / M files from A side.
> 
> How should we configure 22disk to be able to do the same thing on the B side
> of the same floppy disk?
> 
> Inserting Side 2 in the definition table is not enough ....
> 
> Thanks Enrico - Pisa- Italy

This local guy might know.
http://www.ummr.altervista.org/
A good view of computer history, from the land of pasta.
Ben.