Folks who watch videos: If you use Firefox, you really should update to Firefox 4. Otherwise, you should probably use Chrome. I'm going to stop uploading videos that play in older versions of Firefox for three reasons. 1) It takes up a lot of room to support. 2) They're lower quality. 3) Every other major browser supports either h.264 or webm video formats.

So this is your official notice -- I'm not going to post ogg/theora videos (that's what the old versions of Firefox supported) anymore, and some day I'll go back and update all of the existing videos to only have h.264 and webm, so go grab the newest version of Firefox (or Chrome) now!