Hi doug, I've had to dispose of all my classic computer stuff including the Intel MDS. I also had an original DRI CPM disk that *should* have worked on the Intel MDS but I never tried it. I gave the MDS, all the manuals and SW and that disk to Mike Haas, who is also on this list. You may be able to get copies from him. Besides the CPM disk I also had a complete set of ISIS II, assembler, PL/M and, I think, Fortran for the MDS. I think there may have been a copy of ISIS III in there too but I'm not sure. It's my understanding that the original ditribution versions of CPM should run on the MDS since Gary Kidall originally wrote CPM on/for an MDS-800 and it had to be tailored for other machines. But as I said, I never got around to trying it. I'm expecting a complete working MDS 800 shortly so I may yet be able to try and run CPM on one. I wouldn't even getting the MDS 800 except that this deal has been int the works for over a year and a half. I'll probably play with it briefly and then give it away too. FYI most (all?) of the 225s came with single sided single density disk drives but most the ones that I've seen have been upgraded to double-sided double density drives and controller. I'm sorry that you haven't been able to get ahold of me directly but since I got rid of all of my HPs and classic computer stuff I haven't checked my e-mail very often and a lot of it is bouncing. Joe Joe At 11:23 AM 11/6/01 -0600, you wrote: