Not all Mac users can view wmv files. I think that's why YouTube
converts any file format that you upload to Flash.
I bet Harry's Apple plays WMVs. There is nothing it can't do.
BTW I thought Apple didn't like Flash either. Is that just the mobile
devices?
My iMac and iPad play anything on Youtube and other video presentations
on the web just fine. So does my wife's iPhone.
If you right click on any of them I think you will find that they are
presented in "Adobe Flash Player". I've uploaded over 150 videos to
YouTube, some in .wmv, some in .avi and some in .mp4. When you play
them they are all presented in Flash Player.