Hope you can elaborate on this sir. I seem to have a hard time believing this since my Samsung HT is licensed with DTS-HD Master Audio.
dts hd mono should came on your center speaker... if if does not... and it was decode by the htib it may be fed on your left and right like what you have in digital mono from which the sound came from the left and right.
in a receiver like PIONEER, onkyo, yamaha - it has wide variety of audio codec that it can decode.
you may also switch from mono to prologic .... like its mono then fed in LCR
left and right speaker will play it...but not in stereo...still in mono...
since your using the bluray itself.. check if the bluray player can decode the audio rather than sending it raw to the htib..... my engish might be bad... kinda drunk late at night.....hik hik hik