06-22-2014, 02:42 PM
What format disks are these? If they are 5.25" 1.2MB disks, then you MUST use a 96 TPI drive. If these are Atari 400/800, TRS-80, CP/M, and most Apple II and C64 disks, you can use a 48 TPI drive. A 96 TPI drive will work in all cases though, so it is much more versatile.