Currently my PS3 audio is selected to (Optical)
Dolby Digital 5.1, DTS 5.1, LPCM 2ch 44.1khz, LPCM 2ch 48khz. The LPCM's are
pre-selected and I'm unable to de-select them. My receiver prefers the LPCM 2ch 48khz when I play a Blu-Ray...and I have to select Normal Surround sound manually.