Can't test MediaPlugin on this site's sandbox

I want to try MediaPlugin in the sandbox of this site before I can deploy FosWiki on my server. I wrote as below but the page only display the raw text but not the video itself. I tried to add <literal> and <sticky>, but neither works for me. Please anyone advise how I can make it works? Thanks.

%MEDIA{"http://foswiki.org/pub/Support/Question1109/CornerDrop.avi"}%

it turns out to be: %MEDIA{"http://foswiki.org/pub/Sandbox/TestMedia/CornerDrop.avi"}

PS: I uploaded CornerDrop.avi as attachment of my sandbox page.

-- MartinZhang - 13 Jun 2012

MediaPlugin is not installed on foswiki.org. See InstalledPlugins for a list of what's actually installed on foswiki.org. You'll need to test this extension on your own server. Generally we try to keep foswiki.org fairly close to the default installation, so that users can evaluate what they get by default.

-- GeorgeClark - 13 Jun 2012