Detect audio/sub stream on pgc using vstrip.exe

[buzzqw]

hi all

i am able to parse a vts with vstrip and see varius pgc/program chain and all audio/subs belonging to this vts

like this

vstrip.exe @listvob.ini -i vts_01_1.ifo

but i would like to know how to launch vstrip for determining the audio/subs beloging to specific pgc/program chain

using this vstrip.exe @listvob.ini -i vts_01_1.ifo -p9 (for example)
i got the same audio and subs as vstrip.exe @listvob.ini -i vts_01_1.ifo

i know for sure is possible to detect the specific audio/subs of pgc, but how with vstrip ?

i am using latest avaiable vstrip 0.8f_css

thanks

BHH