This weekend I set up a HT system. I have a Pioneer C-603 DVD player and a Yamaha RX-V620 receiver. My question is if I am watching a DVD that is coded for both D/D and DTS, how do I set the sound for DTS. Dolby digital lights up on the receiver display when watching a DVD with both. I want to be able to A/B them to see which I like better. Thanks.

Depends, well....you need to press either the AUDIO key on the DVDs remote and that should switch the tracks..

You also need to make sure you DTS ready..and I'm assuming you are.

If the audio button doesn't work, it's probably only available to do during the main menu options.

To Thunderball's point, most DTS titles default to DD so you have to select DTS from the audio setup options on the DVD's menu. WRT an A/B comparison, it's a bit more complicated: DD and DTS are encoded to different sound reference levels so simply switching back and forth can be a bit misleading.

I solved the problem by just going through the movie's (Gladiator) audio setup and selected "DTS". Sure enough, the DTS light lit up on my receiver's display. I tried hitting my DVD remote's "audio" button and it only displayed the current audio setup (dolby digital). I put in another DVD (Pleasantville) and when I hit the remote's audio button, it toggled between the various audio settings (commentaries). So the audio button appeared to work with Pleasantville, but not with Gladiator.

This equipment is new to me and I will have to experiment with it more. I have already spent a lot of time reading the manuals for both the DVD player and the receiver. Anyway, I very happy that I finally have this system up and running. It sounds great and is a huge jump up in sonic quality over 2.0.

Many studios do not allow you to switch audio tracks on the fly. I know Warner Bros. and New Line do, but many don't. I have heard that this is done to prevent those without dts capability to switch over while at full volume, and potentially damage their speakers.