Updated 4/28/2012 LS-DOS 6.3.1A for the TRS-80 Model II Should also work on the Model 12, and the Model 16 and 6000 in Z-80 only mode These are images of 8-inch floppy disks. The MESS emulator (http://mess.org) now does have a working Model II emulation, but it doesn't support .dmk. I may add MESS-compatible images when I find out what format MESS needs. For now, I've cleaned up the DMK images so that they should work better with DMK2IMD than the ones I had here prior to 4/28/2012. Hopefully that will help folks. These images also can be read as data disks by xtrs or David Keil's TRS-80 Model I/III/4 emulators, using LDOS or LS-DOS with the XTRS8/DCT emulated 8-inch floppy driver. You could make a real 8" floppy from one of these images by connecting an 8" drive to your PC and using the emulator to copy from the image to the real drive. The result should boot on a real machine. You could, of course, also use dmk2cw and a Catweasel, or various other methods, to write real disk images. l2-631a.dmk LS-DOS 6.3.1A, single sided. This was a pristine release disk with a Misosys label. l2-631ss.dmk LS-DOS 6.3.1A, single sided. Not a pristine disk; some extra files present. l2-631ds.dmk LS-DOS 6.3.1A, double sided. Not a pristine disk; some extra files present.