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Time number
This indicates the playing time that has elapsed from the start
of a disc or a title. It can be used to find a specific scene
quickly. (It may not work with some discs.)
Title number
These numbers are recorded on DVD discs. When a disc
contains two or more movies, these movies are numbered as
title1, title2, etc.
CSS
CSS stands for "Content Scramble System". It is the data scram-
bling method used to garble the content of a DVD disc. Ac-
cording to most sources, CSS was put into use for the pur-
pose of ensuring that copyrighted material placed in this for-
mat would only be usable with licensed DVD playback
mechanisms.
DVD
This refers to a high-density optical disc on which high-quality
pictures and sound have been recorded by means of digital
signals. Incorporating a new video compression technology
(MPEG II) and high-density recording technology, DVD enables
aesthetically pleasing full-motion video to be recorded over
long periods of time (for instance, a whole movie can be recorded.)
DVD has a structure consisting of two 0.6mm thin discs that are
adhered to each other. Since the thinner the disc, the higher the
density at which the information can be recorded, a DVD disc has
a greater capacity than a single 1.2mm thick disc. Since the two
thin discs are adhered to each other, there is the potential to achieve
double-sided play sometime in the future for even longer duration
play.
Subtitle
These are the printed lines appearing at the bottom of the
screen that translate or transcribe the dialogue. They are
recorded on DVD discs.
Dolby Digital
Dolby Digital is an advanced form of digital audio coding that
makes it possible to store and transmit high-quality digital sound
far more efficiently than was previously possible. First used
in movied theaters in 1992, it is the result of decades spent by
Dolby Laboratories developing signal-processing systems that
exploit the characteristics of human hearing.
Dolby Digital 2 Channel
At the option of their producers, Dolby Digital programs can
deliver surround sound with two discrete range channels-
left and right .
Angle
Recorded onto some DVD discs are scenes which have been
simultaneously shot from a number of different angles (the
same scene is shot from the front, from the left side, from the
right side, etc.) With such discs, the ANGLE button can be
used to view the scene from different angles.
Chapter number
These numbers are recorded on DVD discs. A title is subdi-
vided into many sections, each of which is numbered, and
specific parts of video presentations can be searched quickly
by using these numbers.
Appendix (Definition of Keywords)
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