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16. GLOSSARY
AACS
Advanced Access Content System (AACS) is the content protec-
tion scheme used with Blu-ray™ discs.
Analog audio
An electrical signal that directly represents sound.
Compare this to digital audio which can be an electrical signal,
but is an indirect representation of sound. See also “Digital
audio”.
Aspect ratio
The width of a TV screen relative to its height.
Conventional TVs are 4:3 (in other words, the TV screen is
almost square); widescreen models are 16:9 (the TV screen is
almost twice as wide as its height).
AVCHD
AVCHD is a new format for high definition video camcorders
which can record and play high-resolution HD images.
Blu-ray Disc™
Blu-ray Disc™ is a next generation optical video disc which is
capable of storing much more data than a conventional DVD.
The large capacity makes it possible to benefit from the
features such as high-definition videos, multi-channel surround
sounds, interactive menus and so on.
Chapter
Just as a book is split up into several chapters, a title on a
BD-video or DVD-video is usually divided into chapters. See also
“Title”.
Cinavia™
Cinavia Notice
This product uses Cinavia technology to limit the use of unau-
thorized copies of some commercially-produced film and videos
and their soundtracks. When a prohibited use of an unauthor-
ized copy is detected, a message will be displayed and playback
or copying will be interrupted.
More information about Cinavia technology is provided at the
Cinavia Online Consumer Information Center at
http://www.cinavia.com
To request additional information about Cinavia by mail, send a
postcard with your mailing address to: Cinavia Consumer Infor-
mation Center, P.O. Box 86851, San Diego, CA, 92138, USA.
This product incorporates proprietary technology under license
from Verance Corporation and is protected by U.S. Patent
7,369,677 and other U.S. and worldwide patents issued and
pending as well as copyright and trade secret protection for
certain aspects of such technology.
Cinavia is a trademark of Verance Corporation. Copyright 2004-
2017 Verance Corporation. All rights reserved by Verance.
Reverse engineering or disassembly is prohibited.
Digital audio
An indirect representation of sound by numbers. During recording,
the sound is measured at discrete intervals (44,100 times a
second for CD audio) by an analog-to-digital converter, generating
a stream of numbers. On playback, a digital-to-analog converter
generates an analog signal based on these numbers. See also
“Sampling frequency” and “Analog audio”.
Dolby Digital
The system to compress digital sound developed by Dolby Labo-
ratories. It offers you sound of stereo (2ch) or multi-channel
audio.
Dolby Digital Plus
Dolby Digital Plus is the next generation digital audio compres-
sion technology developed as an extension to Dolby Digital.
Blu-ray Disc™ supports 7.1 multi-channel surround sound
output.
Dolby TrueHD
Dolby TrueHD is a lossless coding technology developed for next
generation optical discs. Blu-ray Disc™ supports 7.1 multi-
channel surround sound output.
DTS
®
(Digital Theater System)
DTS
®
is a multi-channel surround sound system. You can enjoy
movie dynamic and realistic sound like movie theater. DTS sur-
round sound technologies were developed by DTS, Inc.
DTS-HD
®
DTS-HD
®
is a lossless coding technology developed as an exten-
sion of the original DTS Coherent Acoustics format. Blu-ray
Disc™ supports 7.1 multi-channel surround sound output.
HDMI (High-Definition Multimedia Interface)
A digital interface between an audio and video Source. It can
transmit component video, audio, and control signal with one
cable connection.
HDR (High Dynamic Range)
HDR is a display technology which enables TV’s to display
contrast in a wider dynamic range compared to the existing
SDR (standard dynamic range). This technology improves and
optimizes the ratio between the minimum and maximum
brightness in order to display pictures close to views in nature.
For the best HDR view, your TV needs to be compatible with
HDR signals.
Connecting a TV with higher brightness and contrast capability is
recommended for dynamic, beautiful pictures.
JPEG (Joint Photographic Experts Group)
JPEG is a method of compressing still picture files. You can
copy JPEG files on BD-RE/-R, DVD-RW/-R, CD-RW/-R, or USB
memory stick from a computer and play back the files on this
unit.
Local storage
A storage area of sub content for playing virtual packages on
BD-video.
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