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109
GB
BD-ROM
BD-ROMs (Blu-ray Disc Read-Only Memory)
are commercially produced discs and are
available in the same capacities as the BD
below. Other than conventional movie and video
contents, these discs have enhanced features
such as interactive content, menu operations
using pop-up menus, selection of subtitle
display, and slideshow. Although a BD-ROM
may contain any form of data, most BD-ROM
discs will contain movies in High Definition
format, for playback on Blu-ray Disc/DVD
players.
Blu-ray Disc (BD)
A disc format developed for recording/playing
high-definition (HD) video (for HDTV, etc.),
and for storing large amounts of data. A single
layer Blu-ray Disc holds up to 25 GB, and a
dual-layer Blu-ray Disc holds up to 50 GB of
data.
DCS (Digital Cinema Sound)
In collaboration with Sony Pictures
Entertainment, Sony measured the sound
environment of their studios and integrated the
data of the measurement with Sony DSP (Digital
Signal Processor) technology to develop
“Digital Cinema Sound.” “Digital Cinema
Sound” simulates in a home theater an ideal
movie theater sound environment based on the
preference of the movie director.
Digital Cinema Auto Calibration
Digital Cinema Auto Calibration was developed
by Sony to automatically measure and adjusts
the speaker settings to your listening
environment in a short period of time.
Dolby Digital
This movie theater sound format is more
advanced than Dolby Surround Pro Logic. In
this format, the surround speakers output stereo
sound with an expanded frequency range, and a
subwoofer channel for deep bass is
independently provided. This format is also
called “5.1” with the subwoofer channel
designed as the 0.1 channel (since it functions
only when a deep bass effect is needed). All six
channels in this format are recorded separately
for superior channel separation. Furthermore,
since all the signals are processed digitally, less
signal degradation occurs.
Dolby Digital Plus
Developed as an extension to Dolby Digital, the
audio coding technology supports 7.1 multi-
channel surround sound.
Dolby Pro Logic II
Dolby Pro Logic II creates five full-bandwidth
output channels from 2 channel sources. This is
done using an advanced, high-purity matrix
surround decoder that extracts the spatial
properties of the original recording without
adding any new sounds or tonal colorations.
x Movie mode
The Movie mode is for use with stereo television
shows and all programs encoded in Dolby
Surround. The result is enhanced sound field
directionality that approaches the quality of
discrete 5.1-channel sound.
x Music mode
The Music mode is for use with any stereo music
recordings, and provides a wide and deep sound
space.
Dolby Surround Pro Logic
As one method of decoding Dolby Surround,
Dolby Surround Pro Logic produces four
channels from 2 channel sound. Compared with
the former Dolby Surround system, Dolby
Surround Pro Logic reproduces left-to-right
panning more naturally and localizes sounds
more precisely. To take full advantage of Dolby
Surround Pro Logic, you should have one pair of
surround speakers and a center speaker. The
surround speakers output monaural sound.
Dolby TrueHD
Dolby TrueHD is a lossless coding technology
that supports up to 8 channels of multi-channel
surround sound for the next generation optical
discs. The reproduced sound is true to the
original source bit-for-bit.