One compact disc extension I remember well is CD+G. It was pretty wild plugging an Information Society CD into a CDTV and watching the (admittedly crappy) graph

One compact disc extension I remember well is CD+G. It was pretty wild plugging an Information Society CD into a CDTV and watching the (admittedly crappy) graphics while you listened to music and samples of Leonard Nimoy and DeForest Kelley...