I have a Toshiba SD-1700. I had been using the RCA outputs for sound (analog)for my T.V. upstairs, but for some reason it stopped working. I decided to try it on my setup in the basement using a coaxial cable. I hooked it up to my Denon 1802 (DD and DTS). To my amazement, only DTS would work. Dolby Digital didn't make a sound. I did go into the set up to switch from DTS to DD. I have never experienced this problem before with any DVD player. My question is could I have a faulty DVD player. It's about a year old. Any feedback would be great!