From my own experience: If a film soundtrack is released on home video in DTS and Dolby the difference is that the DTS track has a higher bitrate. DTS overall has a higher bitrate and on some films will sound much more dynamic. It really depends on the film and equipment.

What is the difference in Blu-ray codecs? I thought that these were lossless. I'm a complete Blu novice so I really don't know much of anything about these new codecs and such. I'm thinking that everyone is using DTS because it has always held more information. What should be done is simply use whichever method the film was designed for in the best possible quality. Dolby is synonymous with the OT, but that may not exactly translate to HD. None of this will likely matter since Lucasfilm has been busy at work on another new soundtrack. Why I don't know because the 97 was perfect.

Ady, did the 97 DTS really sound that much better than the Dolby mix? Not sure what I heard in theaters back then.