Make sure you remember that DTS was FIRST available in 1993 with the release of Jurassic Park.

I would guess that a movies soundtrack is mixed for a theater before it's mixed for home video ..... at least back in the day and maybe not so much now. That being said, I personally don't know of a definitive way to separate the how, what, where, when, and why of different audio mixes for different video formats.

I DO know that aside from some of the earlier titles, most Super Bit audio was half-rate DTS but I could not tell you which early ones were full. I have Spiderman 1 & 2 and Batman Begins on Super Bit and they are all half-rate. The X-Files DTS DVD I have is also half-rate DTS.

I hope this helps and doesn't confuse......