For our very special Patreon supporters, here's a complete unabridged 4K60 download of the entire Microsoft Xbox media briefing, as capture directly at the event. This should be by far the highest quality version of the event you'll be able to find anywhere. HEVC only, owing to the huge amount of content. Note that the YouTube preview above is Microsoft's stream - ours is edited down to include just the content, not the countdown.
3840x2160, 59.94fps, 10.9mbps
AC3 2.0, 448kbps, 48000Hz