SDDS ( SDDS - Sony Dynamic Digital Sound ) Sony have designed SDDS exclusively for motion picture theatres/cinemas, you will not find it in consumer products, like DTS or Dolby Digital. SDDS is a motion picture sound format that offer up to 8 channels of discretet digital sound optically printed on both edges of 35mm film, and SDDS playback hardware. Visit SDDS Sony DFP 3000 Back To Technical Main E-mail us with your favourite products etc and we will add it to our site/archive..