First, make sure the disc is not scratched and can be read by the device. Second, please check the installation settings as there have been reported problems with the installer of the game. Use the same disc to install (uninstall) and then perform a new installation. Also, there is a big possibility that the device which reads the discs has problems related to reading discs. Try to install the game into another computer and see what happens. Once you diagnose the problem you will know what is to be done.