
IE10 Update has broken JW Player
I think this is more of a "heads up" than an actual question.
The latest Windows update included KB2817183, a cumulative security update for IE10. It has broken JW Player. Your own demo page (http://www.longtailvideo.com/jw-player/) doesn't work properly any longer. The error message is "Error loading media / File could not be played."
I've encountered related problems with videos in IE10 with this update installed, including the YouTube player (not going through JW Player at all), problems like sound tracks from videos continuing to play even after a Javascript-generated player window has been closed. In short, Microsoft has done something very ugly.
Uninstalling that Windows update appears to cure all of the problems.