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15. GLOSSARY
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.
BD-Live™
BD-Live™ is a BD-video (BD-ROM version 2 Profile 2.0)
which contains new functions (e.g. Internet connection), in
addition to the BONUSVIEW™ function.
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”.
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”.
DNS Server
A server which translates Internet domain names into IP
addresses.
Dolby Digital
The system to compress digital sound developed by Dolby
Laboratories. It offers you sound of stereo (2ch) or
multi-channel audio.
Dolby Digital Plus
Dolby Digital Plus is the next generation digital audio
compression technology developed as an extension to
Dolby Digital. Blu-ray Disc™ supports 7.1 multi-channel
surround sound output.
Dolby Pro Logic II
Dolby Pro Logic II technology processes any high quality
stereo (two-channel) movie and music audio into five
playback channels of full-bandwidth surround sound.
A matrix surround decoding technology, Dolby Pro Logic II
detects the directional cues that occur naturally in stereo
content and uses these elements to create a five-channel
surround sound playback experience.
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 surround sound technologies were developed by DTS,
Inc.
DTS-HD
®
DTS-HD
®
is a lossless coding technology developed as an
extension of the original DTS Coherent Acoustics format.
Blu-ray Disc™ supports 7.1 multi-channel surround sound
output.
Gateway
IP address of the electronic devices (such as router) which
provide Internet access.
HDMI (High-Definition Multimedia Interface)
A digital interface between audio and video source. It can
transmit component video, audio, and control signal with
one cable connection.
Hub
A device used for connecting multiple device to the
network.
IP Address
A set of numbers which are assigned to devices
participating in a computer network.
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
SD card from a computer and play back the files on this
unit.
LAN (Local Area Network)
A group of computer networks covering a small area like a
company, school or home.
Local Storage
A storage area of sub contents for playing virtual packages
on BD-video.
MP3 (MPEG audio layer 3)
MP3 is a method of compressing files. You can copy MP3
files on BD-RE/-R, DVD-RW/-R, CD-RW/-R or SD card
from the computer and play back the files on this unit.
