Somehow I missed this piece of info. I've been setting up my new Denon AVR-1906 and plugged in all my audio output from my DVD player via the two red and white RCA cables. It never displays DTS or DD 5.1 on the display and only says analog... and the rear channels are not discrete. I tried a couple discs where I know specific audio that comes out of the rears and everywhere else, like something buzzing around your head, and it didn't work at all. I keep trying to make heads or tails of the really user unfriendly manual and am getting nowhere. It looks to me like the only way to play these discrete DTS or DD 5.1 is with a coaxial or Toslink/optical cable. Is that true? Anyone know? Thanks all!