For your reference ³I/P/B

To efficiently store video on DVD, common elements among frames are used in common, and different elements are recorded with each individual frame. The frame that contains the common elements is called an I-picture, a complete frame in itself. A P-picture is calculated from past I or P-pictures. The frame that fills in the spaces between the I-and P-pictures is called the B-picture.

I-pictures have the best picture quality, so they should be used when making picture adjustments. ³Frame

Individual images in a video or on the television are called frames. ³Field

Half of the video information (video signal) in a frame is called a field. With conventional TV systems, a single frame (a single screen) consists of two fields.

³Frame still

The two fields are displayed alternately on the TV screen, so the image may be blurry. However, the image quality is better than field images. ³Field still

Only one field (half of the video information) is displayed on the TV screen, so the apparent resolution is low. However, there is no blurring on the screen.

How different kinds of software appear on your television

DVD software is recorded in a variety of picture formats, and how they appear on your TV depends on the software, the kind of TV you have, and the picture mode your TV is set to.

³Letterbox refers to pictures where black bands appear at the top and bottom.

³Pan and scan refers to pictures where part of the picture is cut off so it fills the whole screen.

 

Television and

 

 

 

 

 

 

picture mode

4:3

16:9

16:9

16:9

 

 

 

full mode

zoom mode

auto mode

Software format

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wide-screen, pan and scan

Edges cut off.

Full screen

Top and bottom cut off

Full screen

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Wide-screen, non-pan and

Letterbox

scan

 

 

 

 

 

 

 

 

 

 

 

 

Regular (4:3)

Full screen

Screen stretched

Top and bottom cut off

Full screen with black

 

 

 

 

horizontally

 

 

 

bands at right and left

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Regular (4:3) letterbox

Letterbox

Letterbox with screen

Full screen

Letterbox with

 

 

 

 

 

stretched horizontally

 

 

extremities of picture

 

 

 

 

 

 

 

 

 

 

stretched.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Advanced Operations

The names given to the television picture modes depends on the make of your television. There may also be slight differences in how the pictures appear on the screen. Refer to your television’s operating instructions for details.

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