June 28th, 2010 | Html5
After spending 2 hours I finally found a working converter for my Html5 website. As you know OGG(Open Video Format - Theora) or OGV video formats work well with Firefox (pc&mac) but it is hard to find a OGV/OGG converter. Lucky that I found a good one. You have to use Command Prompt but it worths.
Now visit this page and download ffmpeg2theora to your pc and go to here to see how to convert your videos. Good luck!
I also found a perfect plugin for firefox 3.5 : firefogg.
Visit here if you don't like hand coding.