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DVD VIDEO
A DVD recorded with moving pictures.
On a DVD VIDEO, the picture data uses
the MPEG 2 format, one of the
worldwide standards of digital
compression technology. The picture
data is compressed to about 1/40 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 DVD
VIDEOs.
MPEG Audio
International standard coding system to
compress audio digital signals
authorized by ISO/IEC. MPEG 1
compatible up to 2-channel stereo.
MPEG 2 used on DVDs compatible up
to 7.1-channel surround. It realises the
backward compatibility – you can play
the MPEG 2 sound track with a player
which conforms to MPEG 1.
Multi-angle function
Various angles, or viewpoints of the
video camera, for a scene are recorded
on some DVD VIDEOs.
Glossary
Chapter
Sections of a picture or a music piece on
a DVD VIDEO that are smaller than
titles. A title is composed of several
chapters. Each chapter is assigned a
chapter number enabling you to locate
the chapter you want.
Dolby Digital (AC-3)
Digital audio compression technology
that the Dolby Laboratories
Corporation developed. This
technology conforms to 5.1-channel
surround. When connecting a
component with a built-in Dolby
Digital decoder, you can enjoy more
real audio presence.
DVD
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.
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