It's what i said before, try to select the region of the DVD.
Like -
Norht America
Latin America
Asia
ect...
If you put the DVD in the drive and when you run the program, give an error screen saying: you can't run this CD!.
Try to do what i said before, select in the playlist of the program.
Try to go: My computer - Your DVD drive(with the cd in it), could D: or E: and see if it opens and show the files, if don't now you have sure the CD isn't good.
If isn't no one of these options, tell me what's happening and i'll try to see if i know something about the problem.