Haahaa, just kidding.
I was trying to show someone at our church yesterday a video clip of a fight on ESPN.com... They had a computer running Windows XP if I remember correctly... Anyway, I tried clicking on the link and got a message saying that this file (a .wmf file) was not compatible with the player (Microsoft's own media player)...
At home, on my Linux box, I simply viewed the source of the page and popped the URL of the video into MPlayer and WOW! I could watch the video!
I just cannot fathom why, when all you need to show is some low-quality video clip, sites like ESPN.com feel compelled to only offer a file that has been encoded by the "codec of the week" from Microsoft!
I am just glad that I run Linux since it seems more compatible with Windows media that Windows itself!