On Thu, 19 Jun 1997, Andy Brobston wrote: No, there wasn't a disk copy command, but if you knew machine language and the RWTS (Read/Write Track Subroutines) of DOS 3.3 you could hack one up in a few minutes. Otherwise, the easier and saner way was to just pop in a disk with a disk copy program and BRUN it. DOS 3.3 was very cool, because it was so accesible and so easy to hack. I used to make my own extensions for it, adding subdirectories and other features to DOS 3.3 that only ProDOS had. ProDOS I thought was lame, because it required more work to do stuff with. It ate up more disk and memory resources, its boot process was longer, and its directory heirarhcy sucked because you could move back a directory without having to type in the full path. (IE. going from /disk/dir1/dir2/dir3 to /disk/dir1/dir2 required you to type PREFIX /disk/dir1/dir2...it got annoying with real deep directories). But it was a definite improvement over DOS as far as interfacing to it from machine language. Sam ------------------------------------------------------------------------------- Computer Historian, Programmer, Musician, Philosopher, Athlete, Writer, Jackass