Disk Muncher v1.0 is copyrighted freeware, for duplication of 5.25 disks. It's a DOC 3.3 disk that should allow exact duplicate/backup for any 5.25 disk you have, in any format; DOS3.x, CPM, Pascal, ProDOS or any other exotic DOS known. The archive 'DM1.sdk' is a shrinkit (.sdk) 5.25 disk archive which unshrinks as a self booting standard DOS 3.3 disk. If your Apple II computer model does not support 80 Col. then it defaults to 40Col. The disk will boot from any know Apple II computer model (including IIgs - ROM 01 or ROM 03) or clone. Using two 5.25 Apple II disk drives, and having 128k of memory you can do a single disk copy with automatic ease. This is by far, the best disk duplication version of Disk Muncher ever released. Note: to varify a reboot, type Y