 The director described working simultaneously in two vastly different productions as "a bipolar experience", where he used "every ounce of intuition on "Schindler's List" and every ounce of craft on "Jurassic Park"".Along with the digital effects, Spielberg wanted the film to be the first with digital sound.He funded the creation of DTS (digital theater system), which allows audiences to "really hear the movie the way it was intended to be heard".