The 7.1 mix is actually an upscale of the 5.1 mix from the original DVD release and as a result still features most of the new sound FX added back in 2000. Some original sound FX were restored but not much. The only ones Ive noticed were the original whale cry, Brody pumping the rifle before climbing the mast, and the ricochet when the bullet hits the airtank. Many fans were quite pleased the latter was restored and rightly so but personally I dont think it meshes well with the newer sound effects. There were some things about the 7.1 mix that I think improved over the 5.1. Brody’s ‘bigger boat’ line is somewhat louder and not as drowned out by the music as it was on the 5.1. When he says ‘Smile you son of bi***’ its also somewhat louder than on the 5.1 although ‘bi***’ is still obscured by the bullet shot. You can only properly hear that word in the mono mix. Just the same I prefer the mono mix either way although it is a shame that even the version of that track thats in use now has issues.
Old post but figured I’d share some examples of this for anyone who are misinformed. As some know a lot of the reviews for the Jaws BD seem to give the impression the 7.1 mix faithfully replicates the original mono in surround. This is false and here’s the proof.
Mono
Surround (2000 mix)
Surround (2012 mix)
Note that the last two are more or less the same?? The last one has slightly better balance and it does restore Brody pumping the rifle and the ricochet but nonetheless clearly is not a surround replication of the mono.