JPEG (Joint Photographic Experts Group)

This is a system used for compressing/decoding colour still pictures. If you select JPEG as the storage system on digital cameras, etc., the data will be compressed to 1/10–1/100 of its original size. The benefit of JPEG is less deterioration in picture quality considering the degree of compression.

LPCM (Linear PCM)

These are uncompressed digital signals, similar to those found on CDs. LPCM sound is available when recording in XP mode.

MPEG2 (Moving Picture Experts Group)

A standard for efficiently compressing and expanding colour video. MPEG2 is a compression standard used for DVD and satellite based digital broadcasting. This unit records programmes using MPEG2.

MP3 (MPEG Audio Layer 3)

An audio compression method that compresses audio to approximately one tenth of its size without any considerable loss of audio quality. You can play MP3 you have recorded onto CD-R and CD-RW.

Pan&Scan/Letterbox

In general, DVD-Video are produced with the intention that they be viewed on a widescreen television (16:9 aspect ratio), so images often don’t fit regular (4:3 aspect ratio) televisions. Two styles of picture, “Pan & Scan” and “Letterbox”, deal with this problem.

Pan & Scan:The sides are cut off so the picture fills the screen.

Letterbox:Black bands appear at the top and bottom of the picture so the picture itself appears in an aspect ratio of 16:9.

Playback control (PBC)

If a Video CD has playback control, you can select scenes and information with menus.

(This unit is compatible with version 2.0 and 1.1.)

Progressive/Interlace

The PAL video signal standard has 576 (or 625) interlaced (i) scan lines, whereas progressive scanning, called 576p (or 625p), uses twice the number of scan lines. For the NTSC standard, these are called 480i (or 525i) and 480p (or 525p) respectively.

Using progressive output, you can enjoy the high-resolution video recorded on media such as DVD-Video.

Your television must be compatible to enjoy progressive video. Panasonic televisions with 576 (625)/50i · 50p, 480 (525)/60i · 60p input terminals are progressive compatible.

Protection

You can prevent accidental deletion by setting writing protection or deletion protection.

RGB

This refers to the three primary colours of light, red (R), green (G), and blue (B) and also the method of producing video that uses them. By dividing the video signal into the three colours for transmission, noise is reduced for even higher quality images.

Sampling frequency

 

Sampling is the process of converting the heights of sound wave

Glossary

(analog signal) samples taken at set periods into digits (digital

 

encoding). Sampling frequency is the number of samples taken per

 

second, so larger numbers mean more faithful reproduction of the

 

original sound.

 

Thumbnail

 

This refers to a miniature representation of a picture used to display

 

multiple pictures in the form of a list.

 

1080i

 

In one high definition image, 1080 (1125) alternating scan lines pass

 

every 1/50th of a second to create an interlace image. Because

 

1080i (1125i) more than doubles current television broadcasts of

 

480i (525i), the detail is much clearer and creates a more realistic

 

and rich image.

 

1080p

 

In one high definition image, 1080 (1125) scan lines pass at the

 

same time every 1/50th of a second to create a progressive image.

 

Since progressive video does not alternate scan lines like interlace,

 

there is a minimal amount of screen flicker.

 

720p

 

In one high definition image, 720 (750) scan lines pass at the same

 

time every 1/50th of a second to create a progressive image. Since

 

progressive video does not alternate scan lines like interlace, there

 

is a minimal amount of screen flicker.

 

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Panasonic DMR-EH575 operating instructions Rgb