Hello. I have a problem with my pc. whenever i tries to install any game or software from a dvd then i gets error. i have changed my hard drive and also my dvd rom. i also tried changing my opreting system to windows 8, windows 7 . and widows xp many times. but i still get this error again again..plz help me in removing this error. i have tried all i can do.this when i tries to copy the dvd it copies successfully but when i install the copied software or game i still gives error