On 07/05/2013 02:38 PM, david wrote:
  Doesn't play here on Debian Sid Linux with
Firefox 22. Displays
 message:
 " It appears that we are unable to play this video in your browser for
 one of the following reasons:
       you have JavaScript disabled
       your device does not support HTML5 video
       you have an old version of the Adobe Flash Player. Download the
 latest Flash player to view this video."
 IIRC, HMTL5 video support is very dependent on video drivers: one
 great disadvantage compared to good old proprietary Flash.
 Well, downloaded the MP4 and tried to play it, and it won't play.
 Rather, it plays, but there's no sound and no video. Deleted it and
 tried again, and now mplayer plays it. 
 Plays fine here on Fedora 14 (64 bit) and Firefox 22.0. 
 What video driver are you using? My laptop has Intel 855GM video.