why are there so many??? they have so many different frequencies etc... how the hell does th eaverage joe even know what these options are, let alone if my AVR will process them...??

should i just check every one? thats how i had it before, but for no real reason i went in and unselected anything that was 7.1 as i have a 5.1 setup... now i'm wondering if this will limit things.

ie:if a BD has the option of 7.1 DTS or 5.1 DD, then arent i better to have it come in as 7.1 dts and have my AVR scale that to 5.1 DTS opposed to just 5.1 DD coming in?

Just do "HDMI Auto" and leave it at that. I don't think it uses 3/4 of them anyways, but if auto selects them then the receiver should handle them.

However, if you don't have 7.1 then I would unselect all of those - unless you can verify that your receiver will correctly reprocess 7.1 LPCM correctly to 5.1.

Otherwise, if you only allow 5.1 LPCM output and the PS3 plays a 7.1 track, it will correctly route the extra rear channels into the others.

The PS3 will *always* output BD high resolution tracks as LPCM. Make sure you have HDMI set to PCM output and not bitstream, otherwise it'll be reprocessing any uncompressed tracks into compressed.

ok so i'll unselect anything that is more than 5.1, and make sure HDMI is set to auto and PCM.

thanks daniel.