One of the things that I always thought was that on a Mac you couldn’t view WMV files or streaming WMV video. I could understand that because both iTunes and Quicktime Player on Windows can’t display WMV. This is the most important reason why I’ve always tried to at least provide a WMV and Quicktime version of screencasts that I create.
But it isn’t true. Mac users can view WMV files and live WMV streams on their Macs if they want to. So they apparently just don’t want to! And yes, you need to install two additional tools for it to work, but they’re free, not created by Microsoft and it is not as if those are the first two tools you need to install.
Flip4Mac
There is a Microsoft Window Mediaplayer for the Mac. But as you can read on the Microsoft website, they are no longer doing any further development on it. Instead they point you to a free alternative called Flip4Mac.
After I’d installed that, Firefox had no problem displaying the WMV version of the Google Earth screencast available here (post is in Dutch, but the video is in English).

It played the file in-line without complaining about the fact that it is a WMV.
VLC player
Another free player that I think every Mac user should install is VLC player. It will play just about any format that you can encounter online.
And it also was able to deal with mms:// links containing live WMV streaming video like is being used by SURFnet TV in the Netherlands.

Miro
And if you can’t find your favourite videoblog in iTunes because it doesn’t offer an Quicktime RSS feed, you should definitely check out Miro. I haven’t installed it on the Macbook yet, but have used it before on the XP laptop and it is great. Is has the VLC player integrated in it thus combining all the great playback features from the VLC player with RSS capabilities, torrent downloads etc.
Is this going to change anything?
I’ll probably will keep on creating Quicktime versions of my screencasts, but no longer just because it would otherwise mean that part of the readers/viewers wouldn’t be able to view them without that version. I don’t really care about the format wars in this. I’m not convinced either of them is going to be around in say 5 years time. But that is not the life span of my screencasts. Because applications change and within say a year or say the screencast, like any other instruction, will become outdated.