Poor sound from rental Blu-Ray discs


Hi all, I'm back to the 'Gon after an absence. I just bought a Samsung 55" LED LCD 3D TV and Samsung Blu-Ray 3D disc player. My pre-pro is a Sherwood Newcastle P-965 without HDMI. The Blu-Ray player only has HDMI out and coaxial digital audio out (no analog out) so I am using the coaxial audio out into the pre-pro.

Here's the problem. When I play a standard rental DVD from Netflix, the audio sounds fine, multi-channel surround like I am used to. When I play a purchased Blu-Ray 3D disc, the audio is also fine. When I play a rental Blu-Ray disc from Netflix, the audio sounds horrible -- like monaural, or possibly center channel only, going through 7 speakers. There is no background music or ambiance or sound effects -- the movie sounds eerily quiet except for dialog.

I went into the Samsung Blu-Ray player's audio menu and tried all the settings: outputting as PCM vs. bitstream unprocessed vs. bitstream re-processed into Dolby or DTS; multi-channel compatible vs. downmixed into stereo; and downsampling on (48 kHz) or off (96 kHz). The best results were bitstream unprocessed, multi-channel compatible, downsampling off, with the pre-pro set to "Auto" decoding. This works fine for standard DVD or purchased Blu-Ray, but as mentioned, rental Blu-Ray discs sound horrible, like they are monaural.

The Samsung dealer says that rental Blu-Ray discs from Netflix do not offer lossless audio, even through HDMI. Can anyone confirm this? Is that why the audio sounds so poor on rental Blu-Ray rental discs?

One final complicating factor is that my pre-pro has been having faults recently, so it is probably time to get a new HDMI 1.4 pre-pro anyway. But I would still like to know why the Blu-Ray rental discs sound so bad when the standard DVDs and purchased Blu-Rays discs sound fine.
javachip
I am by no means an expert, but do play Netflix Blue-Ray DVDs. Using an older Oppo player, these sounds as good as DVDs or better. Occasionally, we will receive a Netflix Blue-Ray disc that simply does not play, but this is rare.
I did notice the "The Hunger Games" rented from Netflix only offered standard Dolby surround. None of the blu-ray sound formats, DTS-Master, etc. came up in the menu.
Store bought copy has all the sound formats.
This has been a topic that has come up on Scott Wilkinson's podcast, Jome Theater Geeks. I believe that you are correct that some rental disks do not have the lossless audio. Personally I have not come across it with any of my rental disks. Listen to episode 141 and I believe that they talk about it.
Since your Samsung BR player does not have analog outputs, if you want to get lossless DTS-HD Master Audio and Dolby True HD, you will have to get a receiver or pre-pro that decodes DTS-HD and Dolby True HD, and connect to your BR player via HDMI. You cannot get lossless Blu-ray audio via coaxial.

My setup is connected in this way, and I have rented hundreds of BR movies from Netflix, and I get the lossless audio on all of them, no problem.
I see that I may have been a bit ambiguous there. I meant to say my connection is via HDMI.