When we use HTML5 video to embed a clip on a website (instead of a video-hosting service like YouTube), the site hosting the video is responsible for delivering it in the right format that the user's browser can understand and play. Major web browsers, software platforms, and devices all presently accept the MP4 video standard incorporating MPEG4 or h.264 compressions. Backups of the clip in OGV and WebM forms are useful for the Firefox browser and certain Android devices that can't play MP4 movies.