ok for some reason there is a disk change promt that instead of poping up is just crashing the game any thoughts

so i am relatively new to this dos box, but i was cleaning out my attic and i found a box of old games (along with a hard drive but thats part 2 of my question) the games were mission critical, star reach, privateer, imperium galactica,and a few others i havent tried installing yet well they all …