MediaMedia works better than beta?

I thought they both would have 4K resolution and all the other high end features.<br><br>But I bought MediaMedia in addition to beta. MediaMedia gives me 4K video, while the beta is still 720, even after a few months now. MediaMedia is also way more consistent with its video quality, speed, and stability.<br><br>Is this a bug? Or did I just get lucky with the AI I got?<br><br>I'm happy with the purchase overall but I'm confused.