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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.
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 it is high).
AVCHD
AVCHD is a new format for high defi nition video camcorders
which can record and play high-resolution HD images.
BD-Java
With some BD which support Java applications, you can enjoy
the interactive functions such as games or interactive menus.
BD-Live
BD-Live is a BD-video (BD-ROM version 2 Profi le 2.0/Profi le
1.1) which contains new functions (e.g. Internet connection), in
addition to the BONUSVIEW function.
Blu-ray 3D
Blu-ray 3D is a BD-video (BD-ROM version 3 Profi le 5.0)
which contains 3D view function, in addition to the BD-Live/
BONUSVIEW function.
Blu-ray Disc (BD)
Blu-ray Disc is a next generation optical video disc which is
capable of storing much more data than a conventional DVD
is. The large capacity makes it possible to benefi t from the
features such as high-defi nition 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.
Component Video Output
Each signal of luminance (Y) and component (P
B
/C
B
, P
R
/C
R
)
is independent to output so that you can experience picture
Color as it is.
Also, due to compatibility with progressive video (525p/480p),
you can experience higher-density picture than that in interlace
(525i/480i).
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.
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 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
DTS is a multi-channel surround sound system. By connecting
to DTS decoder, 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-Defi nition 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 fi les. You can
copy JPEG fi les on BD-RE/-R, DVD-RW/-R, CD-RW/-R or SD
Memory Card from a computer and play back the fi les in this
unit.