Steven Spielberg made spectacular use of this system for the sound track of Jurassic Park, and it became an immediate sensation, used in numerous Universal films. Compared with Dolby Digital, DTS provides a faster throughout, and an exclusive 5.1 channel format. Different versions of the system are supplied for theatre systems any home systems. (For latter, it is incorporated into DVDs, AV amplifiers, etc.). One of the key differences between Dolby and DTS is in their transmission rates. With an average throughput of 1,500 kbps (kilobits per second), DTS is capable of approximately three times Dolby Digital’s average of 450 kbps. Or in other words, the Dolby Signals require considerably more compression, whereas DTS signals are compressed only slightly. The difference between the two is audible in terms of the depth of range of their sound; DTS sound offers a considerably broader range. During listening comparisons of Dolby Digital and DTS using the same software source, distinct differences are audible, particularly in the center channel and rear surround. DTS reproduces a realistic presence that pulls the listener into the movie scene. DTS and Dolby Digital are audio formats. When playing back software, a compatible AV amplifier and other hardware is required for reproduction.