I currently have a Screenplay 5700 projector with a six foot screen, a Denon 2900 dvd player, a Denon AVR 3803 receiver with Monitor Audio Radius speakers (90's, 180 & 360). My question is would I notice a difference if I upgraded my dvd player to a Blu ray player? I like the sound and picture of my current set up but like the idea of Blu Ray.