Video Podcast Episode
These widgets for creating a podcast episode are for displaying an MP4 video. The first one plays MP4 video natively in the browser using the HTML5 <video> element and the one below it uses the VideoJS script.
Both of these methods have their advantages and disadvantages. Using HTML5 video is more efficient in that it doesn't require any supporting scripts but it displays differently in each browser.
The VideoJS version has the advantage of a uniform appearance in all browsers and has extra features like initial volume, pause a video when another is played and the ability to hide the fullscreen control.