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Dolby Digital (AC-3) (page 36)
Digital audio compression
technology
that the Dolby
Laboratories Corporation developed.
This technology
conforms to 5.1-channel surround.
The rear channel is
stereo and there is discrete subwoofer
channel in this
format.
The good channel separation is realized
because the all channel data is recorded discrete and
processed in digital.
Dolby Pro Logic (page 40)
Audio signal processing
technology that Dolby
Laboratories Corporation developed
for surround
sound.
When the input signal has the surround
component,
the Pro Logic process outputs the front,
center and rear signals. The rear channel is monaural.
DVD
(page 4)
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, at 4.7 GB (Giga Byte), is 7 times that of a CD.
Furthermore, the data capacity of a dual-layer
and
single-sided
DVD is 8.5 GB, a single-layer
and double-
sided DVD 9.4 GB, and a dual-layer and double-sided
DVD 17 GB.
The picture data uses the MPEG 2 format, one of the
worldwide
standards of digital compression
technology.
The picture data is compressed
to about
I/40 of its original size. The DVD also uses the variable
rate coding technology
that changes the data to be
allocated according to the status of the picture.
The audio data is recorded
in Dolby Digital (AC-3) as
well as in PCM, allowing you to enjoy more real audio
presence.
Furthermore, various advanced
functions such as the
multi-angle,
multilingual,
and Parental
Control
functions
are provided with the DVD.
Multi-angle function (page 27)
Various angles, or viewpoints
of the video camera, for
a scene are recorded on some DVDs.
Multilingual function (page 26)
Several languages for the sound or sub-titles in a
picture are recorded on some DVDs.
Parental Control (page 28)
A function of the DVD to limit playback of the disc by
the age of the users according to the limitation level in
each country. The limitation varies from disc to disc;
when it is activated, playback is completely
prohibited,
violent scenes are skipped or replaced with other
scenes and so on.
Playback Control (PBC) (page 17)
Signals encoded
on VIDEO CDs (Version 2.0) to control
playback.
By using menu screens recorded
on VIDEO CDs with
PBC functions, you can enjoy playing simple
interactive programs, programs with search functions,
and so on.
Title
(page 5)
The longest sections of a picture or a music piece on a
DVD; a movie, etc., for a picture piece on video
software; or an album, etc., for a music piece on an
audio software.
Each title is assigned a title number
enabling you to locate the title you want.
Track
(page 5)
Sections of a picture or a music piece on a CD or
VIDEO CD. Each track is assigned a track number
enabling you to locate the track you want.
VES (Virtual Enhanced Surround) (page 40)
See DCS (Digital Cinema Sound).
VIDEO CD (page4)
A compact disc tha_ contains moving pictures.
The picture data uses the MPEG I format, one of the
worldwide
standards of digital compression
technology.
The picture data is compressed
to about
1/I40 of its original size. Consequently,
a 12 cm
VIDEO CD can contain up to 74 minutes of moving
pictures.
VIDEO CDs also contain compact audio data. Sounds
outside the range of human hearing are compressed
while the sounds we can hear are not compressed.
VIDEO CDs can hold 6 times the audio information of
conventional
audio CDs.
There are 2 versions of VIDEO CDs.
• Version 1.1: You can play only moving pictures and
sounds.
• Version 2.0: You can play high-resolution
still
pictures and enjoy PBC functions.
This player conforms to both versions.
47 E.
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