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Glossary
Chapter (page 38)
Sections of a picture or a music feature that
are smaller than titles. A title is composed of
several chapters. Depending on the disc, no
chapters may be recorded.
Dolby Digital (pages 62 and 67)
Digital audio compression technology
developed by Dolby Laboratories.
This
technology cont_rms to 5.1 -channel
surround sound. The rear channel is stereo
and there is a discrete subwoofer channel in
this I_rmat. Dolby Digital provides the same
5.1 discrete channels of high quality digital
audio found in Dolby Digital cinema audio
systems. Good channel separation is realized
because all of the channel data are recorded
discretely and little deterioration is realized
because all channel data processing is digital.
Dolby Surround
(Pro Logic)
(page
62)
Audio
signal processing
technology
that
Dolby
Laboratories
developed
for surround
sound.
When the input signal contains
a
surround
component,
the Pro Logic process
outputs
the front, center
and rear signals.
The rear channel
is monaural.
DTS (page 67)
Digital
audio
compression
technology
that
Digital
Theater
Systems,
Inc. developed.
This technology
conforms
to 5. l-channel
surround
sound.
The rear channel
is stereo
and there is a discrete
subwoofer
channel
in
this format.
DTS provides
the same 5.1
discrete
channels
of high quality
digital
audio.
Good channel
separation
is realized
because
all of the channel
data is recorded
discretely
and little deterioration
is realized
because
all
channel
data processing
is digital.
DVD (page 6)
A disc that contains up to 8 hours of moving
pictures even though its diameter is the same
as a CD.
The data capacity of a single-layer and
single-sided DVD is 4.7 GB (Giga Byte),
which is 7 times that ofa CD. The data
capacity of a double-layer and single-sided
DVD is 8.5 GB, a single-layer and double-
sided DVD is 9.4 GB, and double-layer and
double-sided DVD is 17GB.
The picture data uses the MPEG 2 format,
one of the worldwide standards of digital
compression technology.
The picture data is
compressed to about 1140 (average) of its
original size. The DVD also uses a variable
rate coding technology that changes the data
to be allocated according to the status of the
picture. Audio information is recorded in a
multi-channel
format, such as Dolby Digital,
allowing yon to enjoy a more real audio
presence.
Fnrthermore, various advanced functions
such as the multi-angle, nmltilingnal, and
Parental Control flmctions are provided with
the DVD.
DVD-RW
(page
6)
A DVD-RW
is a recordable
and rewritable
disc that is the same size as a DVD VIDEO.
The DVD-RW
has two different
modes:
VR
mode
and Video mode.
DVD-RWs
created
in Video mode
have the same format
as a
DVD VIDEO,
while discs created
in VR
(Video
Recording)
mode allow the contents
to be programmed
or edited.
DVD+RW
(page
6)
A DVD+RW
(plus RW) is a recordable
al:ld
rewritable
disc.
DVD+RWs
use a recording
I_rmat that is comparable
to the DVD
VIDEO
format.
118 Glossary
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