Ogg is a free, open container format maintained by the Xiph.Org Foundation. The creators of the Ogg format state that it is unrestricted by software patents and is designed to provide for efficient streaming and manipulation of high quality digital multimedia.While most browsers support OGG, Apple & Microsoft do not. There are plug ins for their browsers, however.
Well, there were. With Apple's 'upgrades' the OGG plug ins are now broken.
It wouldn't cost a thing for these behemoths to support the formats, Theora & Vorbis. I have read that Apple & Microsoft might fear patent challenges, but, apparently Google & Opera don't have those fears.
But Mozilla, Opera & Google don't have their own media file formats. I am sure that implementing support for these file formats would shutter both companies in a week.
Seriously, boys, just plug in the code & let it be. Your stuff is better but sometimes people just want to post videos of lamb chops in space.