If this link works, it is a Boeing brake energy test of a B777, with carbon brakes.
The tires I suspect were new, though I believe the brakes were intentionally worn near limits before the test. Compare the visible red hot brake disc packs on the T7 video, to the 767 taxiing in to GIG.
Who knows how new the tires were on the 767 or how many times they may have been re-treaded and how many were even inflated on landing.