In reply to:
Actually, DTS tracks do use a higher bitrate than Dolby Digital - as for exact numbers, there are flavours of each and I've never really seen hard evidence (due to secrecy and closed doors in both camps) of exact numbers. Where did 1/16 and 1/4 come from? And what are those fractions of? Full 44.1K/16 PCM audio?
That is what I remembered reading on the 'old' DTS website, for which I surfed before making my post to make sure those numbers were correct, but they completley revamped the site and I was unable to find it. As far as the technical details on that claim, they did not list the details, just the compression comparison of 1/4 to 1/16th.
As far as DTS format being louder...I guess I mostly notice it in the older DTS formatted DVDs, but whatever makes the sound seem louder, I know that I have to move the volume down a 1/4 inch when changing over from DD to DTS *shrugs in ignorance*