SDDS

SDDS is a digital sound format comprised of the SDDS soundtrack, optically printed on both edges of 35mm film, and SDDS playback hardware. The SDDS surround format consists of eight discreet channels of sound.

For now, you have to go to the movies to enjoy SDDS surround. Sony's SDDS is exclusive to theater motion pictures sound, as there is no home theater equivalent to SDDS yet.

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