I don't know the dif between PCM or Bitstream.<BR><BR>Since most movies use only Dolby Digital, I usually use that, but for the ones that support DTS I usually use that for kicks.<BR><BR>Honestly ...

Dolby Digital (Downmix PCM or Dolby Digital) BD Audio Settings (Mix or Direct) DTS (Downmix PCM or Dolby Digital) 48Khz/96Khz PCM (48/16 Bit or 96/24Bit) ...

Audio formats deliver different sound experiences depending on the source material and your setup. Dolby and Digital Theater Sound offer a variety of options in terms of quality. Dolby Atmos and ...