A.DSK - The original A.DSK that shipped with MYZ80 1.24 EMPTY.DSK - An empty DSK file; however, note that MYZ80 will automatically an empty DSK file when you attempt to access a drive that hasn't been defined. E.g., if B.DSK hasn't been set in the MS-DOS environment, and you type DIR B:, MYZ80 will create an empty B.DSK. NZ.DSK - A fresh, full NZCOM implementation; see User 1 for extra utils ZPM3.DSK - A working CPM3/ZPM3 system with Simeon Cran's ZCCP.COM. Needs an infusion of bread-and-butter utilities (no DIR, etc.). To boot this disk, you must export BOOT3.CPM to DOS. See ZPM3.TXT for details. ZSYSINST.DSK - Contains full set of installation files for NZCOM, Z3PLUS, ZSDOS MYZ80CLK and BackGrounder ii. Useful for setting up a new system.