Posted 13 Jan 2010
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You cannot enter Media / Flash files in Lists, Wikis, Blogs, etc. scenarios. There RadEditor does not have control over the presentation view which means that we cannot control the output when it is not in edit mode. When you submit the page, MOSS will validate it and automatically make changes if the content is not valid. You can verify this by trying to enter the same content with the original SharePoint rich text editor.