] viewdemo aimmm.dem
Playing demo from aimmm.dem.
Coudn't open demo file aimmm.dem.
Viewdemo: couldn't load demo aimmm.dem.
] viewdemo aimmm.dem
Playing demo from aimmm.dem.
Coudn't open demo file aimmm.dem.
Viewdemo: couldn't load demo aimmm.dem.
] playdemo aimmm.dem
Playing demo from aimmm.dem.
ERROR: coulmaybe the demo is corrupted .