120
US
Glossary
AVCHD
The AVCHD format is a high-definition digital
video camera format used to record SD
(standard definition)
or
HD (high definition)
signals
of
either the 1080i specification* or the
nap
specification** on DVDs, using efficient
data compression coding technology. The
MPEG-4 AVC/H.264 format is adopted to
compress video data, and the Dolby Digital
or
Linear PCM system is used to compress audio
data. The MPEG-4 AVC/H.264 format is
capable
of
compressing images at higher
efficiency than that
of
the conventional image
compression format. The MPEG-4 AVC/H.264
format enables a high definition (HD) video
signal shot on a digital video camera recorder to
be recorded on DVD discs
in
the same way as it
would be for a standard definition (SD)
television signal.
* A high definition specification that utilizes 1080
effective scanning lines and the interlace format.
**
A high definition specification that utilizes 720
effective scanning lines and the progressive format.
BD-J
application
The
BD-ROM format supports Java for
interactive functions.
"BD-1" offers content providers almost
unlimited functionality when creating
interactive BD-ROM titles.
BD-R
BD-R (Blu-ray Disc Recordable) is a
recordable, write-once Blu-ray Disc, available
in the same capacities as the BD below. Since
contents can be recorded and cannot be
overwritten, a BD-R can be used to archive
valuable data
or
storing and distributing video
material.
BD-RE
BD-RE (Blu-ray Disc Rewritable) is a
recordable and rewritable Blu-ray Disc,
available in the same capacities as the BD
below. The re-recordable feature makes
extensive editing and time-shifting applications
possible.
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
aBO-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 CinemaAuto 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,
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