I didn't know the new 5.1 was taken from the 70mm/6-track - thanks, Neil. One thing that sounded very different to me (compared to memory, so...) was the part in Temple of Doom just after Indy has picked up the Sankara stones from the giant skull and before he goes into the mines - there are loud screams coming from the mines, which I don't remember from the theatrical version. Also, didn't that snake used to turn around???