Yesterday i purchased the Orange Box game pack!
I don't know why but my optical drive cannot run the setup, i explored the dvd and looks like there's nothing inside.
I tried the second setup DVD. Now the optical drive could open the DVD and read it.
My doubt is about the first DVD, if is a different format or the optical drive is too old to read it.
I have a Toshiba laptop with a TSSTCorp CD/DVDW TS-L632D ATA Device running Vista sp1.