ogv and webm embedded video with video tag fails

Chrome Version : 13.0.782.215
OS Version: Ubuntu Natty
URLs (if applicable) :
Other browsers tested:
  Firefox 6 works fine
What steps will reproduce the problem?
1. add the HTML at the bottom to a local file and load it
2.
3.

What is the expected result?
ogv or webm video plays

What happens instead?
Embedded ogv or webm video will not play

Please provide any additional information below. Attach a screenshot if
possible.

Here is the code snippet from an embedded html file in /tmp/foo loaded as file:///tmp/foo/5.html

<video src='/tmp/foo/rfbproxy-jaunty.ogv' width='320' height='240' controls autoplay></video>

This is from the QRT HTML5 video test.