The HTML Video element (video) embeds a media player which supports video playback into the document. You can use video for audio content as well, but the audio element may provide a more appropriate user experience. This security update is rated Critical for Internet Explorer 6 Service Pack 1 on Microsoft Windows 2000 Service Pack 4; Critical for Internet Explorer 6, Internet Explorer 7, and Internet Explorer 8 on Windows clients; and Moderate for… Cool solution for crossbrowser-safe HTML5 video (IE6+) with a few lines of code and just one .mp4 video file and a flash fallback. Even for mobile browsers.