Dolby Digital 6.1 EX is an enhancement to the standard Dolby Digital setup provided in most theatres. Concieved by Oscar-winning sound designer Gary Rydstrom and with joint collaberation with THX and Dolby Laboratories, the addition of a "back" channel to the theatre seemed a logical step in the evolution of theatre digital sound.

Although Dolby 5.1 is a complete discrete 5 channel and LFE setup, Dolby 6.1EX is not. The additional "back" channel is derived from the matrixed components of the left and right surround channels.

Since DD6.1EX is a technology that is a subclass of DD5.1, then all DD6.1EX films are playable through a DD5.1 decoder. Debuted in the latest chapter of the Star Wars series : Episode I, the new technology was also used in the following movies.

Buena Vista

Toy Story 2

Mission to Mars

Destination Films


DreamWorks SKG

The Haunting


Chicken Run

MGM/United Artists

James Bond: The World Is Not Enough®

New Line Cinema

Austin Powers: The Spy Who Shagged Me

Sony Releasing

The Messenger: The Joan of Arc Story

Twentieth Century Fox

The Fight Club

Star Wars, Episode One


Minority Report

USA Films

Pitch Black


The Bone Collector

The list of films using this was taken from the Dolby website. (quite some time ago, may I add.)

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