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The HTML5 video and audio tags are used to join the video and audio tags in the page, with the support html5 browsers do not need to be pre-loaded Adobe Flash browser plug-in will be able to quickly and easily play video and audio files. And html5media.js can make video and audio tags take effect on the browser does not support html5.
Use html5media.js can be viewed on all browsers html5 video and audio files, which make up the lower versions of IE browser does not support the [video] and [audio] tag, you only need to load html5media.js use the [video] and [audio] tag will be able to cross-browser play video and audio.