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When playing a Blu-ray in my screening room I used to use a player with built-in 5.1 decoding (Sony BDP-S550) and fed that to my CP500's 6-track input. I didn't care if the disk was Dolby Digital or DTS; the player handled it.
But after going digital, I got a CP750 and would feed that via fiber. Of course the 750 knows how to do Dolby Digital but not DTS. Could not go back to the old way due to a significant ground loop hum which I was never able to pin down. But I have a freestanding decoder I can use if I want the best sound from DTS. If I just wanted basic sound (or if it was a vintage mono movie) I can tell the player to fold the 5.1 down to 2 channels and tell the 750 to do Pro-Logic decoding.
My BDP-S550 developed a flaky HDMI port and has been relegated to home use with a projector that needs analog anyway. My alt player (a similar Sony, minus internal decoding) recently gave up the ghost on the blue laser (still plays DVDs). Still have a no-name player which used to be the emergency backup at the screening room.
So I recently bought a super cheap Sony BDP-S3700 so I can have one at each possible playback location. This thing is so cheapo that the ONLY outputs are HDMI and a digital coax. No optical. But in playing with the settings found it offered what I thought would be a very useful feature. It can be told to convert DTS into Dolby Digital for output. I tested this feature on the decoder box as it will tell you what it's playing. I popped in a disk whose best track is DTS. Decoder box says DTS. Activated the feature and resumed playback. Sure enough, the decoder says it's playing Dolby Digital.
BUT when I tried this at the screening room, feeding the CP750, it totally ignored the signal, as though there was nothing there at all. (Playback of a disk that is actually Dolby Digital worked fine.)
So what do you suppose the difference is between "real" DD and this sort of faux DD the player creates?
But after going digital, I got a CP750 and would feed that via fiber. Of course the 750 knows how to do Dolby Digital but not DTS. Could not go back to the old way due to a significant ground loop hum which I was never able to pin down. But I have a freestanding decoder I can use if I want the best sound from DTS. If I just wanted basic sound (or if it was a vintage mono movie) I can tell the player to fold the 5.1 down to 2 channels and tell the 750 to do Pro-Logic decoding.
My BDP-S550 developed a flaky HDMI port and has been relegated to home use with a projector that needs analog anyway. My alt player (a similar Sony, minus internal decoding) recently gave up the ghost on the blue laser (still plays DVDs). Still have a no-name player which used to be the emergency backup at the screening room.
So I recently bought a super cheap Sony BDP-S3700 so I can have one at each possible playback location. This thing is so cheapo that the ONLY outputs are HDMI and a digital coax. No optical. But in playing with the settings found it offered what I thought would be a very useful feature. It can be told to convert DTS into Dolby Digital for output. I tested this feature on the decoder box as it will tell you what it's playing. I popped in a disk whose best track is DTS. Decoder box says DTS. Activated the feature and resumed playback. Sure enough, the decoder says it's playing Dolby Digital.
BUT when I tried this at the screening room, feeding the CP750, it totally ignored the signal, as though there was nothing there at all. (Playback of a disk that is actually Dolby Digital worked fine.)
So what do you suppose the difference is between "real" DD and this sort of faux DD the player creates?
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