MAGNUM COMPUTER DISKS

MAGNUM disks begin with tracks 0 & 1 formatted SSDD 1:1 1024 byte
sectors.  Single density disks then change to 26/128 byte sectors.
Double density disks continue on 1:1 1024.  There is an apparent reading
skew of 2:1 in both cases.

Uniform can read the single density as a CP/M standard SSSD disk, but
cannot read the double density disk.  Compupro 8/16 will read part of
the directory, but not files.