Doc wrote: O.K. I have the Diag & Maint version (at least the one that includes the MFM formatter.) And I have this as a nice tape image ready to be written back to TK50 on UNIX (no need to mess with VMS.) If you want to mess with VMS, there is another source for MDM that you can use to build your own MDM tape or disk on VMS. I don't feel authorized to redistribute either of those images. That would be software piracy and Bill Gates, the inventor of BASIC and the graphical user interface (and anything that's useful in computing) says that is a bad, bad thing. regards -Gunther PS: contact me off line if you disagree to any of what I am saying.