Changes
/* Vortex Disk Format */
== Vortex Disk Format ==
Sector numbers are 01h..09h (same as AMSDOS IBM Format, but with a 9th sector).Disks are Double-Sided, Double Density, 80 Tracks, 9 Sectors, blocks are allocated in 4K units.
Total capacity is 720K (704K available):
* First 9K contain two System Tracks (eg. CP/M Bootstrap)
