Bootdisk mit CP/M 3 Quelle. Format #8 skew4 

IMageDisk Analyzer 1.18 / Mar 12 2012
IMD 1.18: 23/03/2019 19:18:28

Prof-80 CP/M Quellen 

Required cylinders: 80
Required heads    : 2
Data rate         : 500kbps
Est. maximum track: 9040 bytes

Possible drives/options to write PROF-ASM.IMD :

 3.5" HD 80-track   NOTE: *1
   Double-step: OFF

 5.25" HD 80-track
   Double-step: OFF

*1 Should fit on 360rpm drive, 300rpm drive will leave long end gap.