Nick, thanks for that tip about Super--I'll download it as it might come in handy sometime.

After checking the MS documentation on codecs, etc., I suspect that it's a codec problem, so I checked the box for automatically downloading codecs and maybe it might fix itself. Fortunately I'm not dependent on Media Player (which I always hated as it was slow and clumsy)--I can use VLC Player which seems to play all kinds of audio and video files.

Don