-------------------------------------------------------- if (myvideo.canPlayType) { // CanPlayType returns maybe, probably, or an empty string. var playMsg = myvideo.canPlayType('video/mp4; codecs="avc1.42E01E"'); if ("" != playMsg) { msg.innerHTML += "mp4/H.264 is " + playMsg + " supported
"; } playMsg = myvideo.canPlayType('video/ogg; codecs="theora"'); if ("" != playMsg) { msg.innerHTML += "ogg is " + playMsg + " supported
"; } playMsg = myvideo.canPlayType('video/webm; codecs="vp8, vorbis"'); if ("" != playMsg) { msg.innerHTML += "webm is " + playMsg + " supported
"; } } else { msg.innerHTML += "no video support"; } } ------------------------------------------------------------ var playMsg = myvideo.canPlayType('video/mp4; codecs="avc1.42E01E"'); if ("" != playMsg) { msg.innerHTML += "mp4/H.264 is " + playMsg + " supported
"; } ------------------------------------------------------------ Using multiple file formats in JavaScript

CanPlayType test for multiple files

The canPlayType method tests for specific video formats and codecs.
It returns probably, maybe, or an empty string (no support).

------------------------------------------------------------ ------------------------------------------------------------ // load video file from input field function getVideo() { var fileURL = document.getElementById("videoFile").value; // get input field if (fileURL != ""){ video.src = fileURL; video.load(); // if HTML source element is used document.getElementById("play").click(); // start play } else { errMessage("Enter a valid video URL"); // fail silently } } ------------------------------------------------------------ https://msdn.microsoft.com/es-es/library/hh924823%28v=vs.85%29.aspx