Vp8 converter and more.

http://www.jeanmariegall.com/2010/05/22/mirovideoconverter-free-convert-any-video-to-mp4-webm-vp8-iphone-android-ipod-ipad-and-more/

Here anyone is able to convert any video to webm or theora format and much more. I found it as I was browsing the web. I think it will eventually comes on handy. Enjoy