LiteOn dd-a100x 用户指南

Glossary

Glossary

480i/480p

Indicates the number of scanning lines and scanning

format of an image signal

480i indicates 480 scanning lines with interlace format,

and 480p indicates 480 scanning lines with progressive

format.
576i/576p

Indicates the number of scanning lines and scanning

format of an image signal

576i indicates 576 scanning lines with interlace format,

and 576p indicates 576 scanning lines with progressive

format.
Aspect ratio

Aspect ratio refers to the length to height ratio of TV

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 multi-channel 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 informa-

tion 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.
DivX

VOD

DivX

VOD (video-on-demand) service is designed to

protect copyrights of digital videos. Through an online

registration process, DivX

VOD prevents unauthorized

downloads or ﬁle sharing. For more information, please

visit: http://www.divx.com/vod.
Dolby Digital

A six-channel 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.
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 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 use a record-

ing 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.
HDCP

HDCP stands for ‘High-bandwidth Digital Content Protec-

tion’ which is developed by Intel Corporation to ensure

the integrity of digital content transmitted via HDMI/DVI

interface.
HDMI

HDMI is short for ‘High-Deﬁnition Multimedia Interface’.

It is an all-digital interface which transmits uncompressed

high-deﬁnition video and multi-channel digital audio from

any audio/video source to display devices via a single

cable.
JPEG

A popular ﬁle format for still image compression and stor-

age. 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 im-

ages. On some DVDs, digital audio has been compressed

and recorded in this format.