Detecting dolby 5.1 capability on a host DVD player

Our current project has both a Dolby 5.1 audio stream and a standard stereo equivalent.
I want to write a script that will detect whether a host DVD player can use the 5.1 surround or not, something I've been led to believe is possible.
According to p500 of the manual, SPRM 15 simply stores 'ac-3 capability' - the problem is that in order to make best use of the DVD space both the 5.1 and stereo streams are encoded as ac3.
Is it then possible to specifically detect dolby 5.1 capability on a player?
jON

Hey snowctrl,
thats a good question. is there a way to detect compatibility of a DD set-top player, yes. should you do it, you can. i sit recommended by authors, not really.
SPRM 15 checks the players ability to playback DD, not the embedded streams IN the DD.
my suggestions:
forget SPRM 15 altogether, make your 5.1 your default audio track (A1), that way, if your end user has surround sound capabilities, 5.1 will play on the insertion of the DVD. if he doesnt have surround sound capapbilities, then it will automatically down-mix to stereo.
you might also want to give the end user the option to choose the audio configuration they most like in menu form.

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