Verify video URLs work:
Big Buck Bunny MP4 OGG WebM
Chrome MP4 WebM

#1

None of these videos should play (media="(min-width: 100000px)"):

#2

One of these videos should play (media="(min-width: 1px)"):

#3

Should show big buck bunny (media="(min-width: 1px)"), not Chrome video (no media attribute); H.264 only:

#4

Should show Chrome (no media attribute); H.264 only:

#5

Should skip big buck bunny (media="(min-width: 100000px)"), and play Chrome video (no media attribute):

Works as expected in: Chrome, iOS 5-6, Android 2.3, Firefox 16, Opera 12, Safari 6, IE 9-10*, Windows Phone 7.5*, Blackberry 6-7

Does not work as expected in:

<video> not supported in: Blackberry 5, IE 8

* Test exhibited weird effect: video #2 did not play on first tab load. A refresh loaded the video successfully.