Hi. I thought DTS has 20 bit audio and DD is 16 bit (both being 48KHz each for the 5 channels). Is that right? I can't decode DTS today and am debating about upgrading my receiver. While I'm here, why is there a new pro-logic format DPL-II? Surely that type of format is obsoleted by 5.1 formats? Thanks for patience with dumb questions.