Pictures, videos and DVD movies on MacBook are great. But I bought this because of games. My parents have an old computer, so Sims 2 can't be played. But I have tried a lot of games installing on this MacBook. I put the CD in, then I click on the icon it shows all the files- read only files. I press "open" and it doesn't! When I put it in the old computer it shows installing icons automaticlly. is there a special way to install games? How?