Originally Posted by Paul H
Does the BD55 have separate memory for SD & BD discs?
If not, the above would be fine for playing DVD's, but wouldn't you have to keep setting secondary-audio to OFF
when playing Blu-ray's, so the player doesn't output lossy audio? As explained below:
Secondary Audio On/Off will never generate lossy audio over the ANALOG outputs which is what the original poster is talking about using for Blu-ray. Bitstream for DVD output over S/PDIF, and the Analog outputs for BD.
For analog output, the player has to expand to PCM anyway in order to mix in the secondary audio and menu clicks sound but this does not sacrifice the lossless audio.
The only place it gets a little tricky is if you have a 7.1-ch speaker setup. If you have a 7.1-ch set-up, then the Secondary Audio ON/OFF switch does make a difference for Dolby and PCM 7.1-channel material, even over the ANALOG outputs (oddly enough it is NOT a problem for 7.1-ch DTS-HD content). With secondary audio ON and native 7.1-ch Dolby or PCM content, the player will lose the rear channels (putting out only 5.1) if it detects secondary audio or menu clicks in the stream. It needs the channels for mixing in the secondary audio sound with the main soundtrack.
If you're using a 5.1-channel configuration, then there's nothing to worry about. But if you're using 7.1 channels, and watching Dolby or PCM 7.1 movies, and these titles use menu click sounds or you enable the PiP BonusView content, then bye bye rear speakers unless you set secondary audio to OFF.
I think they could have made this more complicated. No, actually I take that back. It would have been difficult to make this more complicated than it is.