i have aprogram that is on 9 dvds. I copied them to my hard drive and the program works fine. them i copied them to my external HD and i cant figure out how to get it to work. Since i have 1 dvd drive,i dont want to have to swap dvds out everytime i need info from a different dvd. Thats why i want to run it from my external. Is this even possible? I read about mapping, but im not sure how to do it.