What audio/video formats does the Surface RT support?

I'm just curious to find out what formats the device supports out of the box with no third party audio/video player? I was looking for a definitive list but couldn't find one. If there is a Surface owner out there who wouldn't mind trying out a bunch of formats and giving us a list then that would be nice. I'll edit this post to add any new information so that future users may know.

AUDIO

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VIDEO

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