I bought the Orange Box for PC, as I eagerly went to install it, after hearing about the wonders of Portal, Half Life and Team Fortress 2, as I popped in disc 1 I knew immediately something was wrong, nothing was happening. I opened then closed the tray again, and still nothing, I placed the second disc in, just to see if it was the computer and not the disc, and it read it right away, I was amazed, I was given a blank disc, that bad experience is why I stick mainly too console gaming, also, because I bought it on sale, I couldn't return it.