Alright let me start with most dvd players having either a digital optical input or coaxial digital input maybe even both which most dvd players have both features. As oppose to other dvd players they also have Multi-channel analog inputs for sound formats such as SACD and DVD-Audio handling bit rates such as 24-bit rates 192khz. I notice some SACDS sampling rates lower than 192khz like 177khz Let me get to my point here when I watch Dolby Digital/DTS encoded dvd movies sometimes I watch them through the Multi-Channel analog input used for DVD-Audio/SACD. Is it just me or the soundtrack sounds much louder compare to using digital optical/coaxial. I know theres a limit to digital optical/coaxial sources where they cannot handle higher sampling rates over 96khz and Multi-Channel analog sources can. Are they really dvd movies out there with a higher sampling rate?