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Menu System Mark Levinson
to place identical information in each of two “stereo” channels,
creating an oxymoron: the mono, two-channel recording.
The Nº40 does not compare channels of two-channel recordings to
determine whether or not they are mono. Thus the selection you
make here applies only to Dolby Digital 1.0 recordings that you
might find of older movies that have been transferred to DVD.
A sound profile can be associated with Dolby Digital 1.0 signals.