I am trying to learn to program in Python(Ubuntu). I am writing a front end for atari800 emulator. To do this, the program will create a command line with options to run the selected game. The problem is I can not get any of the atr files to run from the command line. I have tried several different options(-atari,-xl, etc). It always get 'error loading file'. The games run from within the Atari800 program. Also, my bin version of star raiders(32k) will run from the atari800 program but not from the command line although other bin files do run from the command line. I have done the extract from cartridge and create cartridge on all these files. Am I missing something to run these from the command line? Any help would be appreciated...