DTS HD Master & Dolby True HD set up


Hi everybody.
I have denon 2500btci blu-ray support DTS HD Master & Dolby true HD and use denon avr4306 for pre/pro.
If I want to enjoy this new HD format which should I choose.
setup blu-ray has
*Mix Audio Output-Output the secondary and interactive audio with primary audio if it is available(audio will be output in a multi LPCM format.)
*HD Audio Output-Output only the primary audio(audio will be output in bitstream.)
Which one should I choose.
2nd question is
*HDMI Multi(normal)-The multi-channel audio signals are output from the HDMI OUT with bitstream or LPCM
*HDMI Multi(LPCM)-The multi-channel audio signals are
output from the HDMI OUT with a LPCM.
which one should I choose for ..new HD format.
Need your help....Thanks
70412345
Thank you Kal & Ken.also Bob
yesterday I try set up 1&4 and 2&3 with DTS HD recorded blu-ray disc (Verdi AIDA & B B KING Live).
It make different. 1&4 set up is much better to me which means work.

Thanks again
Hi everyone.
I just got e-mail from Paul Belanger Denon Canada.
He said
Denon DVD2500 & DVD1800btci Both only support DTS HD & Dolby Tru HD via bitstream to an HDMI 1.3 enabled AVR.
With means looks like I needs new receiver such as Denon AVR3808ci or Integra DHC9.9 for pre/pro.
I know nothing about Integra.
Whichone should I choose.
needs your help.
thanks
02-07-09: Kennyt: Kal, Why?
Because the 2500 was originally marketed as a transport to connect to processors that could decode the HD codecs and to differentiate it from the 3800.

Kal