Whats annoying specifically about that site is that my Mac does show a Windows Media interface embedded in it, but the file just never starts playing. The Mac team at Microsoft really needs to get on the ball and implement every playback/codec feature the PC version has. They do such a better job on Office and Remote Desktop.

Generally I just move on, as it's not worth viewing the HTML source to find the link to the media file to then download and view in Windows Media Player or MPlayer.