What is the difference between 1080p, 480p, 720p, Blueray, BRRIP, CAM, DVDrip, DVDSCR, Hdrip, HDTS, HDTV or WebRip? What is the difference between 1080p and 2160p? More specifically what do these quality differences mean? Is the difference in how a computer processes the sound or in how the sound is played back?