13-sector version of ADT (Apple Disk Transfer). Comes with bootstrapping
instructions, so that it's usable even for those without any working 13-sector
disks. System requirements: Any 48K or higher Apple II/II+/IIe/IIgs with Super
Serial Card, or any Apple IIc/IIc+; 5.25 inch disk drive; standard 16-sector
ADT must already be present and working.

Original ADT program by Paul Guertin. 13-sector modifications by Linards
Ticmanis (ticmanis@gmx.de).