Converting video to HTML5 ogg / ogv and mpg4 [closed]

Does anyone know about any software that can convert video (avi, flv, whatever) to HTML5 supported ogg/ogv and mpeg4 formats?

I tried a few but I couldn't find anything that actually works.

Can you convert MP4 to HTML5?

Step 1: Open http://converterpoint.com/ on your PC browser. Step 2: Click “Browse” to add and upload an MP4 video from your PC. Step 3: Once the video is uploaded to this HTML5 converter online, select the default setting, or edit on your own. You can also opt to take a preview of the file.

What is .OGG in HTML video?

WebM and Ogg are two much newer file types related to HTML5 video. Ogg uses Theora encoding which is based on the open-source standard audio file format. These can be saved with a . ogg or . ogv extension.

The Miro video converter does a beautiful job and is drag-n-drop. http://www.mirovideoconverter.com/

BTW it's FREE and also very good for mobile device encoding.