The latest update to the PS4 also improves the sound quality at 1.5x playback for both Blu-rays and DVDs. Sony has updated its PlayStation 4 to play 3D Blu-ray movies. Available now, version 1.75 of the PS4's system software now matches the PlayStation 3 in being able to play 3D Blu-ray discs. All you need now to complete the picture is a compatible 3D TV and the 3D flicks. Sony and M...