DEFINITION OF TERMS
DVD Video
This refers to a
DVD Video has a structure consisting of two 0.6 mm thin discs which are adhered to each other. Since the thinner the disc, the higher the density at which the information can be recorded, a DVD Video has a greater capacity than a single
1.2mm thick disc. Since the two thin discs are adhered to each other, there is the potential to achieve
MPEG
MPEG stands for Moving Picture Expert Group. It is regarded as an international standard for compressing and restoring digital video and audio signal. “MPEG” standards include
MP3
MP3 is an audio data reduction format, which stands for
Aspect ratio (DVD Video)
The aspect ratio is the ratio between the vertical and horizontal size of the picture displayed on a TV screen. The aspect ratio of normal TV screen is 4:3 while that of the
Subtitle (DVD Video)
Some DVD Videos contain the recording of more than one subtitle languages. With these discs, this unit can select one of the subtitle languages as desired during playback.
Angle (DVD Video)
Some DVD Videos contains scenes which have shot simultaneously from multiple camera angles. With these discs, the same scene can be viewed from each of these different angles.
Component video
Video signals with three channels of separate information that makes up the picture. There are some types of component video, such as Y/CB(Pb)/CR(Pr) and R/G/B.
Bitstream
The digital signal form of multichannel audio data (e.g., 5.1 channel) before it is decoded into its various channels.
Linear PCM
PCM stands for Pulse Code Modulation. Linear PCM is the usual digital method without compression, used for audio playback of audio CDs, DVD Videos, etc.
Title, Title number (DVD Video)
The title is the largest unit of the video/audio recording in DVD Videos. Usually, the title corresponds to a movie of video software or an album (or a piece) of music software. Title numbers are sequential numbers assigned to titles.
Chapter, Chapter number (DVD Video)
Chapters are divisions, which are smaller than the titles, of the contents recorded on DVD Videos. Every title is composed of more than one chapter. Chapter numbers are the sequential numbers assigned to the chapters in a DVD Video.
Track number (CD)
Track numbers are used to designate the various sections of a disc.
Folder (MP3 disc)
Folder is the largest unit of the contents recorded on MP3 discs.
File (MP3 disc)
Each material (song) is recorded on a file.
Files may be grouped into a folder by artist, album, category, etc.
• DVD Video structure
ENGLISH
Interlaced scan
In the conventional video system, a picture is shown on the screen in two halves. The interlaced scanning system places lines of the second half of the picture
Progressive scan
Progressive scanning displays all the horizontal lines of a picture at one time, as a single frame.
Composite video
A single video signal commonly used in most consumer video products that contains all luminance, color, and synchronization information.
S-video
A video signal which improves picture quality over the standard composite video signal.
•CD structure
•MP3 disc structure
On an MP3 disc, a folder can be a member of another folder, creating hierarchical folder layers. If you are familiar with a personal computer, you may easily understand the hierarchical file/folder construction.
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