Both next-gen consoles constantly record your gameplay, with the recording ability being pushed as being 'social'
Earlier today we reported about the Xbox One recording the last five minutes of your gameplay, but now Sony have confirmed that the PS4 will keep a 15-minute buffer of your gameplay.
The PS4 goes a little further, though, with a dedicated social "Share" button built directly into the controller. We have no idea if gamers will actually use these functions yet, but it would be nice to go back through your last few minutes of gameplay for sharing purposes. I wonder if it records all of the audio through the various microphones, and Kinect?