I have converted an mp4 video using Miro, into webmhd and webmsd.
None of them play in Firefox!!!
Note that I have not even uploaded it to the server where the website is.
I am just clicking on the file in my computer and it does not play.
The only way to play the video in Firefox is to go to http://video.online-convert.com/convert-to-webm and use their online tool to convert it to webm vp8.
How can I use Miro to convert the mp4 to webm vp8?
You can use youtube to mp3 converter at high resolution in many formats. Also, you can download youtube or any other website video at great resolution in no minute.