Furthermore, various advanced functions such as the multi-angle, multilingual, and Parental Control functions are provided with the DVD.

File

Section of a picture on a data CD containing JPEG image files.

Film based software, Video based software

DVDs can be classified as Film based or Video based software. Film based DVDs contain the same images (24 frames per second) that are shown at movie theaters. Video based DVDs, such as television dramas or sit-coms, displays images at 30 frames (or 60 fields) per second.

Index (Super Audio CD, CD)/Video Index (VIDEO CD)

A number that divides a track into sections to easily locate the point you want on a VIDEO CD, Super Audio CD, or CD. Depending on the disc, no indexes may be recorded.

Interlace format (Interlaced scanning)

The Interlace format is the NTSC standard method for displaying TV images at 30 frames per second. Each frame is scanned twice - alternately between the even numbered scanning lines and then odd numbered scanning lines, at 60 times per second.

Multi-angle function

Various angles of a scene, or viewpoints of the video camera are recorded on some DVDs.

Multilingual function

Several languages for the sound or subtitles in a picture are recorded on some DVDs.

Neo:6

Developed by Digital Theater Systems, Inc., applies a conventional 2-channel or Dolby Digital source signal to a high-precision, digital matrix decoder to achieve 6.1 channel surround playback.

CINEMA mode allows for more separation of channels to enhance the 6.1 channel effect, and is best suited for movies.

MUSIC mode allows the front L and R channels to go unprocessed for optimum stereo, with the addition of the surround components adding a special quality to the sound.

Parental Control

A function of the DVD to limit playback of the disc by the age of the users according to the limitation level in each country. The limitation varies from disc to disc; when it is activated, playback is completely prohibited, violent scenes are skipped or replaced with other scenes and so on.

Playback Control (PBC)

Signals encoded on VIDEO CDs (Version 2.0) to control playback.

By using menu screens recorded on VIDEO CDs with PBC functions, you can enjoy playing simple interactive programs, programs with search functions, and so on.

Progressive format

 

(sequential scanning)

 

In contrast to the Interlace format, the

 

Additional

progressive format can reproduce 60 frames per

 

second by reproducing all scanning lines (525

 

lines for the NTSC system). The overall picture

 

quality increases and still images, text and

 

horizontal lines appear sharper. This format is

Information

compatible with the 525 progressive format.

 

Region Code

 

This system is used to protect copyrights. A

 

region number is allocated on each DVD system

 

or DVD disc according to the sales region. Each

 

region code is shown on the system as well as on

 

the disc packaging. The system can play the

 

discs that match its region code. The system can

 

also play discs with the “ ALL ” mark. Even when

 

the region code is not shown on the DVD, the

 

region limit may still be activated.

 

Scene

 

On a VIDEO CD with PBC (playback control)

 

functions, the menu screens, moving pictures

 

and still pictures are divided into sections called

 

“scenes.”

 

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