This release adds HTML5 video and audio support to MediaBox for the mp4, mp3 and webm file types, with the inclusion of a Flash based MediaPlayer for browsers that don't support the HTML5 video and audio tag (mp4 and mp3 files only).
Click here for a mp4 video example
Youtube and Vimeo support has also been updated to use the new IFrame embed method offered by both providers.
In addition to these new features, popups that are unable to load their content (due to broken links, missing media or a lack of support for the format) will show a related media icon, eg:
A full changelog is available here