I just verified that DiskDup+ 2.9.2 will make usable GS/OS install disks from the images downloaded from Apple. Those are self-mounting, I guess. I used Stuffit to do the initial extraction from .bin file, then DiskDup+ loaded that image and copied it to floppy. It booted and worked normally on my IIgs. All this on my Mac PPC 7600/120. -Paul