I received an email (via iMail) that has imbedded videos in wmv format. The will not play due to an unsupported file format or some other message. How can I get them to play on my mac? Yes, I know these videos come from awindows PC but I thought the mac was an agnostic pc when it comes to video formats it is able to play. P.S. it looks like it is trying to play the video in safari..I think.