In order to play flash videos SWF files in the browsers running on Mac OS, you need to install the Adobe Flash Player plug-in
. You can see that the flash is played on my end: http://screencast.com/t/L4Se9KwBKp0
The same is valid for the WMV videos. You need to find and install a browser plug-in that could play this type of video format. My suggestion is to install Windows Media Components as shown in the video, which should fix the problem: http://screencast.com/t/Z4qhyegS
Note that the browser plugins do not have nothing to do with RadEditor and for this reason we do not have a chart with platform support for Flash and Media files.
the Telerik team
If you want to get updates on new releases, tips and tricks and sneak peeks at our product labs directly from the developers working on the RadControls for ASP.NET AJAX, subscribe to their blog feed