MS Director of Product Planning
"Now More Direct than ever!"
(10-07-2013, 11:27 PM)
It won't be automatic for every Achievement. It's a feature that Developers can unlock for achievements, OR, for instance, have hidden in the game for doing something cool or discovering something hidden. Basically we allow developers access to GameDVR and they can put conditions on an automatic recording.
But not every Achievement will automatically be recorded.