I believe it also depends on which release it is. The first DTS release for JP had issues and the studio fixed it by rereleasing it with the DTS fixed.
http://www.thedigitalbits.com/site_archive/reviews/jurassicpark.html
10/20/00 - DTS Update We've taken the time to compare the regular collector's edition (reviewed above) with the DTS audio version, and some of you are going to be a little surprised. Usually, we tend to prefer the DTS audio versions of our favorite DVDs, but not in this case. The DTS track does deliver the usual improvements in resolution. These include a bigger, wider soundstage, with greater clarity and more natural rendition of atmosphere. Panning is smoother and music and dialogue seem to come alive. But the big problem with this track is a decided lack of low frequency. I've heard a lot of others complaining about this on the newsgroups, and I can only agree. When I listened to this film in DTS sound in the theaters, I could actually feel the bass in my chest. No one expects quite that same sensation in the living room, but I was surprised that there was so little low frequency as to be actually distracting. The Dolby Digital version of this disc resonates with bass - not so the DTS. This was the first DTS film in theaters and I wanted to be blown away with the DTS sound on DVD. I wasn't. Add to that the fact that the addition of the DTS track meant the removal of virtually all substantial bonus material other than the making-of documentary and... well, our recommendation is to buy the Dolby Digital version.
8/2/01 - DTS Update There is now conclusive proof that the first pressings of the DTS DVD version of Jurassic Park featured defective 5.1 audio - Universal has quietly corrected the DTS sound and re-pressed the disc. The new pressing of this disc is now starting to appear in stores. The difference in the low frequency sound between the fixed and original defective discs is startling. Whereas before, I had to manually adjust both my receiver and subwoofer to obtain any kind of worthwhile bass, this new disc simply rumbles with it. My subwoofer is now far more active - THIS is the audio experience I recall from the theater. The new DTS audio easily rates an A+ for quality. Unfortunately, there is no sure-fire way to identify the new disc from its packaging alone. The original release of the disc had two stickers on the front, one which promoted the Jurassic Park III weblinks the disc provided, and one which promoted the discs PlayStation 2 compatibility. Some people are reporting that the new discs don't have the PS2 sticker. Mine didn't have either. One thing you should look for is the spine label at the top of the keepcase - on the new discs, it should read: Jurassic Park (WS) (DTS). That said, THE ONLY SURE WAY TO IDENTIFY THE FIXED VERSION IS BY THE NUMBERS ON THE INSIDE RING OF THE ACTUAL DISC. The FIXED disc will read: PEMC-D2R2. The earlier pressings - the defective ones - read either PEMC-D2R0 or PEMC-D2R1. Note that it's our belief that the DTS version of The Lost World does not share this defect. We are working to get some answers, as well as a way consumers can exchange their defective discs. Keep checking back for updates. Bill Hunt
