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LOSSARY
480i/480p
Indicates the number of scanning lines and the scanning format of
an image signal.
480i indicates 480 scanning lines with interlace format, and 480p
indicates 480 scanning lines with progressive format.
Aspect ratio
Aspect ratio refers to the length to height ratio of viewing screens.
The ratio of a standard TV is 4:3, while the ratio of a high-definition
or wide TV is 16:9. The letter box allows you to enjoy a picture with a
wider perspective.
Bitstream
The digital form of multichannel audio data (e.g., 5.1-channel) before
it is decoded into its various channels.
Chapter / Title
Chapter is the smallest division and title is the largest division on a
DVD VIDEO. A chapter is a division of a title and similar to a track for
Video CD or Audio CD.
Component video
Video signals with three channels of separate information that
makes up the picture. There are some types of component video,
such as R/G/B and Y/Cb(Pb)/Cr(Pr).
Composite video
A single video signal commonly used in most consumer video
products that contains all luminance, color, and synchronization
information.
Dolby Digital®
A six-channel audio system consisting of left, center, right, left rear,
right rear and LFE (Low-Frequency Effect channel, for use with a
sub-woofer) channels. It requires a Dolby Digital® decoder, either
in the player or in an external receiver to regenerate the sound. All
processing is done in the digital domain.
Not all Dolby Digital discs contain six (5.1) channels of information.
DTS® (Digital Theater Systems)
DTS® stands for Digital Theater Systems. DTS® is a Digital Surround
audio encoding format configured with six (5.1) channels, similar to
Dolby Digital®. It requires a DTS® decoder, either in the player or in
an external receiver to regenerate the sound. All processing is done
in the digital domain.
Not all DTS discs contain six (5.1) channels of information.
DVD-R
DVD-R is a recordable disc that is the same size as a DVD-Video.
Contents can be recorded only once to a DVD-R, and will have the
same format as a DVD-Video.
DVD-RW
DVD-RW is a recordable and re-writable disc that is the same size as
a DVD-Video. DVD-RW has two different modes: VR mode and Video
mode. DVD created in video mode has the same format as a DVD-
Video, while discs created in VR (Video Recording) mode allow the
contents to be programmed or edited
DVD+R
DVD+R is a recordable disc that is the same size as a DVD-Video.
Contents can be recorded only once to a DVD+R, and will have the
same format as a DVD-Video.
DVD+RW
DVD+RW is a recordable and rewritable disc. Recording can be
erased and you can record on the same disc again for the maximum
of 1,000 times. DVD+RW uses a recording format that is comparable
to a DVD-Video format.
Interlace output
NTSC, the video signal standard, has 480 interlaced (I) scan lines. The
Interlaced scanning system places lines of the second half of the
picture in-between lines of the first half of the picture.
JPEG
A popular file format for still image compression and storage.
JPEG stands for “Joint Photographic Experts Group”. There are two
sub-types of the JPEG format as follows:
•
Baseline JPEG: used for digital cameras, the web, etc.
•
Lossless JPEG: an old type, rarely used now.
Linear PCM audio
PCM stands for “Pulse Code Modulation”. Linear PCM is the usual
method for digitally encoding audio without compression, and is
used for the audio tracks on DVD VIDEO discs, Audio CDs, etc.
MP3
MP3 (MPEG1 audio layer 3) is a compressed audio file format.
Files are recognized by their file extension “.mp3” or “.MP3”.
MPEG
MPEG stands for “Motion Picture Experts Group”. This is an
international standard for compression of moving images.
On some DVDs, digital audio has been compressed and recorded in
this format.
NTSC (National Television System Committee)
The initials stand for National Television Standards Committee. This is
the committee that established the standards for television systems
in the United States. The NTSC standard broadcasts 525 or 480 lines
of resolution per second, and 30 frames per second of refresh rate,
60 Hz field frequency. NTSC TV system is widely used in USA, Canada,
Latin America and Taiwan etc.
PAL (Phase Alternation by Line)
PAL (Phase Alternation Line) is the color television broadcast stan-
dard throughout Western Europe (except in France, where SECAM
is the standard), Australia, China, Singapore and Malaysia etc. It has
625 lines of vertical resolution per second and 25 frames per second
refresh rate, 50 Hz field frequency.
PBC
Playback Control. A special feature on a Video CD or Super VCD that
enables interactive use.
S-Video
A video signal which improves picture quality over standard com-
posite connections. Used on Super VHS, DVD, high end TV monitors,
etc.
Track
SVCD, VCD, and Audio CD discs use tracks to divide up the content
of a disc.
