Question : How do I use the silverlight video player?

Hi,

I am attempting to create a silverlight application within visual studio 2008 that will play an mp4 video file. I have downloaded the visual studio silverlight extensions and tools and the silverlight sdk 3.0. I have downloaded the SMF dll files (Microsoft.SilverlightMediaFramework.dll, Microsoft.SilverlightMediaFramework.Player.dll, Microsoft.Web.Media.SmoothStreaming.dll) and referenced these within my application. My MainPage.xaml looks like the attached but when I run my application I get a "visual studio must close error"? Can I not reference mp4 files like I have within my xaml page? How do I play mp4 files through a silverlight application for my users to view online? I've read about the MediaPlayer control but I believe that is now out of date....shame, as that approach seemed simple.

Any help appreciated,

Martin.

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Answer : How do I use the silverlight video player?

As I know, you must handle play/stop buttons yourself in media element.
and also you can play .mp4 files in silverlight3 look at this for example:

http://www.progmic.com/2009/06/how-to-play-mpeg-video-via-silverlight-3/