PS3 firmware ver 2.30

[tonydicenso]

does this update support DTS 7.1 HDMA? under audio settings it just has one line for dts and one line for dolby digital and then like a dozen or so lines for PCM (2 ch, 5 ch, 7ch, etc, at different frequencies). you need to have audio out set to linear PCM correct? I am still a little confused about this but I did notice that on I am Legend, in L-PCM the sound was much broader and I guess thats because of the discrete signals to each channel? but are there exceptions? when should you select bitstream for audio out? also if I do auto for audio options, it leaves a couple of PCM lines unchecked. should I manually check them becasue it says I may damage my speakers at certain frequencies? thanks in advance to anyone who has knowledge of any of this.