First, the HD-A2 is not an HDMI v1.3 device. The HD-A2 cannot pass a TrueHD bitstream via HDMI. Instead, it must decode internally to multichannel PCM and output that. Likewise, unless your PS3 is one of the new Slim models, it cannot bitstream the new formats and must instead decode them to multichannel PCM. So that's why you aren't seeing TrueHD or DTS-HD bitstreams.

As for the other issue, what player are you putting the DVD's in? The HD-A2 and PS3 are both probably decoding the DD and DTS bitstreams from DVD's and outputting multichannel PCM. Your DVD jukebox, HD-PVR, and PS2 should be able to give you DD and DTS bitstreams.
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The only difference in the listening mode preset I can see is I am able to select PLX as an option with analog/PCM.

Do you have a 5.1 speaker setup or a 7.1 speaker setup? If it is 5.1, then Pro Logic IIx will not be an option with Dolby Digital, DTS, TrueHD, DTS-HD, or Multichannel PCM. That is because all of those are 5.1 formats and there is therefore nothing for PLIIx to do.
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gonk
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