Manual Panasonic DMR-EX78 (page 96 of 100) (English)

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RQT9078

Bitstream

This is a signal compressed and converted into digital form. It is

converted back to a multi-channel audio signal, e.g., 5.1-channel, by a

decoder.

CPRM (Content Protection for Recordable Media)

CPRM is technology used to protect broadcasts that are allowed to

be recorded only once. Such broadcasts can be recorded only with

CPRM-compatible recorders and discs.

Decoder

A decoder restores the coded audio signals on DVDs to normal. This is

called decoding.

Deep Colour

This unit incorporates HDMI

(V.1.3 with Deep Colour) technology that

can reproduce greater colour gradation (4096 steps) when connected

to a compatible TV.

You can enjoy exceptionally rich, natural-looking colours, with smooth,

detailed gradation and minimal colour banding.

[A lower colour gradation (256 steps), without deep colour, will be

reproduced if connected to a TV which does not support deep colour.

The unit will automatically set appropriate output to suit the connected TV.]

DivX

DivX is a popular media technology created by DivX, Inc. DivX media

ﬁ les contain highly compressed video with high visual quality that

maintains a relatively small ﬁ le size.

Dolby Digital

This is a method of coding digital signals developed by Dolby

Laboratories. Apart from stereo (2 channel) audio, these signals can

also be multi-channel audio. A large amount of audio information can

be recorded on one disc using this method.

When recording on this unit Dolby Digital (2 channel) is the default

audio.

Down-mixing

This is the process of remixing the multi-channel audio found on some

discs into two channels. It is useful when you want to listen to the 5.1-

channel audio recorded on DVDs through your TV’s speakers. Some

discs prohibit down-mixing. If this is the case, this unit can only output

the front two channels.

Drive

In the instance of this unit, this refers to the hard disk (HDD), disc

(DVD) and SD card (SD) (

[EX88]). These perform the reading and

writing of data.

DTS (Digital Theater Systems)

This surround system is used in many movie theaters. There is good

separation between the channels, so realistic sound effects are possible.

Dynamic range

Dynamic range is the difference between the lowest level of sound that

can be heard above the noise of the equipment and the highest level

of sound before distortion occurs. Dynamic range compression means

reducing the gap between the loudest and softest sounds. This means

you can hear dialogue clearly at low volume.

Film and Video

DVD-Video are recorded using either ﬁ lm or video. The unit can

determine which type has been used, then uses the most suitable

method of progressive output.

Film: Recorded at 25 frames per second (PAL discs) or 24 frames

per second (NTSC discs). (NTSC discs recorded at 30

frames per second as well.)

Generally appropriate for motion picture ﬁ lms.

Video: Recorded at 25 frames/50 ﬁ elds per second. (PAL discs)

or 30 frames/60 ﬁ elds per second (NTSC discs). Generally

appropriate for TV drama programmes or animation.

Finalise

A process that makes play of a recorded CD-R, CD-RW, DVD-R, etc.

possible on equipment that can play such media. You can ﬁ nalise DVD-

R, DVD-R DL, DVD-RW (DVD-Video format), +R, and +R DL on the

unit. After ﬁ nalising, the disc becomes play-only and you can no longer

record or edit. However, ﬁ nalised DVD-RW can be formatted to become

recordable.

Folder

This is a place on the hard disk, disc or SD card ([EX88]) where groups

of data are stored together. In the case of this unit, it refers to the place

where still pictures (JPEG) and MPEG2 (

[EX88]) are stored.

Formatting

Formatting is the process of making media such as DVD-RAM

recordable on recording equipment.

You can format DVD-RAM, DVD-RW (only as DVD-Video format), +RW,

SD card (

[EX88]) and the HDD or unused +R and +R DL on this unit.

Formatting irrevocably erases all contents.

Frame and Field

Frame refers to the single images that constitute the video you see on

your TV. Each frame consists of 2 ﬁ elds.

Frame Field Field

 A frame still shows 2 ﬁ elds, so there may be some blurring between

them, but picture quality is generally better.

 A ﬁ eld still shows less picture information so it may be rougher, but

there is no blurring.

HDD (Hard disk drive)

This is a mass data storage device used in computers, etc. A disk

with a surface that has been treated with magnetic ﬂ uid is spun and a

magnetic head is brought in close proximity to facilitate the reading and

writing of large amounts of data at high speed.

HDMI (High-Deﬁ nition Multimedia Interface)

Unlike conventional connections, it transmits uncompressed digital

video and audio signals on a single cable. This unit supports high-

deﬁ nition video output [720p (750p), 1080i (1125i) and 1080p (1125p)]

from HDMI AV OUT terminal. To enjoy high-deﬁ nition video a high

deﬁ nition compatible television is required.

JPEG (Joint Photographic Experts Group)

This is a system used for compressing/decoding color 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 beneﬁ t 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.

MPEG2 (Moving Picture Experts Group)

A standard for efﬁ ciently compressing and expanding colour video.

MPEG2 is a compression standard used for DVD and satellite based

digital broadcasting. This unit records programmes using MPEG2.

SD Video ﬁ les shot with a Panasonic SD video camera, etc. can be

copied to the HDD or a DVD-RAM disc.

MP3 (MPEG Audio Layer 3)

An audio compression method that compresses audio to approximately

one-tenth of its size without any signiﬁ cant loss of audio quality.

Pan & Scan/Letterbox

In general, DVD-Video are produced with the intention that they will be

viewed on a widescreen TV (16:9 aspect ratio), so images often don’t

ﬁ t regular TVs (4:3 aspect ratio). 2 styles of picture, “Pan & Scan” and

“Letterbox”, deal with this problem.

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

ﬁ lls 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 on the screen.

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

Glossary

72-99.indd 9672-99.indd 96 2008/03/06 13:51:322008/03/06 13:51:32

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