Where can I get a digital copy of COD:WAW for Mac? I looked on Steam and it's labeled as windows only. I would go buy a physical copy off amazon but I have a Mac Mini which has no optical drive and the Apple Website says game discs wont work over CD Sharing. Also, If I can find a digital copy of the game how well will it play on the base mac mini? It plays L4D2 really well and Borderlands okay on it so I assume a 3-4 year old game would work fine.