What browser do you have to use? For the two that I have (Maxthon and IE), it says, “This browser does not support video playback.” I hope it isn’t Chrome, that crap is not going on my computer.
“For the two that I have (Maxthon and IE)”
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Both are dogs, but Maxthon is a Chinese dog. I wouldn’t trust it for much of anything.
YouTube is HTML5. Pretty much any browser can play back video content.