Hello,
An old theme just came up on the Wikipedia mailing list again : Wikipedia strongly encourages[1] using theora encoding, strongly enough that I don't think we currently host any other video encodings...[2] however, most users know how to make and edit and play mpegs, and find theora hard to work with.
http://mail.wikimedia.org/pipermail/wikipedia-l/2005-March/038244.html
Perhaps the theora-dev list can help us overcome our technical problems so that we have a reasonable choice in setting policy...
SJ
[1] http://meta.wikimedia.org/wiki/Video_policy (could use better theora information) [1.1] http://meta.wikimedia.org/wiki/Multimedia (ditto, also better ogg information)
[2] Article containing one of the only known video files on Wikipedia : http://en.wikipedia.org/wiki/Hypertrophic_cardiomyopathy