I have Win 7 64 running IE10 from Visual Studio 2010 and a local mp4 file. If I debug to IE 10 it gives Invalid source. TO Chrome 28.0 it works fine. Firefox 22.0 no video with supported format and MIME type found.
What could be wrong? Another fellow here had a problem when I specified to codec but I am not doing it here. I also tried several other formats.
Here is the entire web page
<!DOCTYPE html><html >
<body>
<video controls>
<source src="Images\P1010785.mp4" type="video/mp4"/>
Your browser does not support the video tag.
</video>
</body>
</html>
Thanks,
Chas