Video is used widely for educational purposes on the Internet. Online videos can be an effective learning tool, particularly for people who cannot read well. However, video is not widely used on Wikimedia projects. To date, only 38,000 video files have been uploaded to Wikimedia Commons — about 0.2% of the 19 million other media files in our repository (by contrast, YouTube now hosts over 6.5 million educational videos).
One of the major reasons why there are so few videos on Wikimedia sites is that we do not support the widespread MP4 standard. Instead, we rely on the lesser-known Ogg Theora and WebM standards, whose user base is vastly outnumbered by the many users of MP4 around the world. As of this writing, about 150 million of our users are still unable to view open video files on their browsers.
The request for comment is open to the public. Readers and editors alike are encouraged to share their perspective on this potential change for video on Wikimedia sites."