Sound tracks
Two white lines: Optical track Variable Area
Can be played back either in Mono or Dolby Stereo using a red LED or red Laser Reader
Dotted white line: Timing track for DTS digital. (Digital Theatre Systems)
This sound is recorded on special CD discs, and the timing track keeps these discs in sync with the picture
Grey track between sprocket holes: Dolby SRD (Spectral recording digital)
A close up of this track can be seen under the heading 'Misc Sound'
Blue lines each side of the film: SDDS (Sony Dynamic Digital Sound)
Click on photo to return
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