Sony PBD-V30 - Manual (Page 71)

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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.
Multi-angle function
Various angles (viewpoints of the video
camera) for a scene are recorded on
some DVD VIDEOs.
Multilingual function
Several languages for the sound or sub-
titles in a picture are recorded on some
DVD VIDEOs.
Parental Control
A function of the DVD VIDEO for
playback limitation of the disc
according to the age of the users based
on the limitation level in each country.
The limitation varies from disc to disc;
when it is activated, playback is either
completely prohibited or partially
censored, with violent or adult scenes
being skipped or replaced, etc.
Chapter
Sections of a picture or 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 a 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.
Glossary