For your reference •l/p/b, Television and picture mode, Software format – Panasonic DVD-RV80 User Manual
Page 31: Wide-screen, pan and scan, Regular (4:3), Regular (4:3) letterbox, How different kinds of software appear on your, Television
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For your reference
•l/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 l-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 l-and P-pictures is called the B*picture.
l-pictures have the best picture quality, so they should be used when making picture adjustments.
• Frame
Individual images in a video or on the television are called frames.
• Field
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.
• Frame 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.
• Field 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.
• Letterbox refers to pictures where black bands appear at the top and bottom.
• Pan and scan refers to pictures where part of the picture is cut off so it fills the whole screen.
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Television and
picture mode
Software format
4:3
16:9
full mode
16:9
zoom mode
16:9
auto mode
Wide-screen, pan and scan
Edges cut off
Full screen
Top and bottom cut off
Full screen
Wide-screen, non-pan and
scan
Letterbox
Regular (4:3)
Full screen
Screen stretched
horizontally
Top and bottom cut off
Full screen with black
bands at right and left
Regular (4:3) letterbox
Letterbox
Letterbox with screen
stretched horizontally
Full screen
Letterbox with
extremities of picture
stretched
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.
VQT8621