I agree with Philip Belben, The Victor 9000 runs both (Victor/MS) DOS and CP/M86 run on it and someone out there has it/them. There was an IBM above board built for it. That made it IBM compatible (don't know if that included a way to have drive support (e.g. - drive support software for multiple formats - like the original Wang PC and APC), or accepted other drives that might be installed. Any way, without that option you can't boot from any IBM or Industry Standard DOS. The Act Sirius-1 (a re-badged Victor 9000) should work. Try Google - or another search engine - and search for Victor 9000. There is a surprising amount of info out there. I have just begun digging through the 25,000 (not a typo) separate items that Google found. Take someone up on getting disk copies for Victor 9000 or the Sirius, whether in the States or wherever. Bob Allbery