I copied [[commons:TimedText:Folgers.ogv.de.srt]] to http://prototype.wikimedia.org/timedmedia/TimedText:Folgers_local_prototype.ogv.de.srt , then played the coffee commercial video on the main page of the prototype wiki, hoping to see German subtitles. The interface does offer me to select German subtitles and put them on top of or below the video (the latter option even creates some extra black space below the video), but no matter what I try I don't get any subtitles.
I'm using Firefox 3.6.15 on Ubuntu. The selected video format seems to be Ogg 200p.
Version: unspecified
Severity: major