GRiDAccess, though similar to the various terminal emulators, seems to be more of a general communications program. All the disks here are for GRiD-OS. As such, you will need to format the floppy disk you want to use with the GRiD-OS disk formatting utility (Initialize Media) before writing to it in ImageDisk. In order to format a 720kB disk for GRiD-OS, you'll also need to use a newer version of Initialize Media. Older versions will work fine for 360kB disks. Disk Type: 360kB, 5.25" (GACC317.IMD); 720kB, 3.5" (GRIDACC.IMD) Disk OS/File Format: GRiD-OS Disk Image Format: ImageDisk (.imd) --------------- | GACC317.IMD | --------------- GRiDAccess 3.1.7 File Name File Type Version -------------------------------------------------------- GRiDAccess Run 3.1.7 --------------- | GRIDACC.IMD | --------------- GRiDAccess 11XX & 12XX 3.1.6 File Name File Type Version -------------------------------------------------------- GRiDAccess Run 3.1.6