Hi Allen, That may be the case. I was hoping someone could verify that is, indeed, the issue. Thanks On Sun, Jan 14, 2018 at 4:31 PM, Allen Huffman <alsplace at pobox.com> wrote: > Do Infocom games use their own disk routines? If they aren’t using pure > ROM calls, they are unlikely to work on anything other than real hardware > or the CoCoSDC. > >