Panasonic DMREX75 User Manual download pdf (Page 76)

RQT8388

Glossary

Bitstream

This is the digital form of multi-channel audio data (e.g., 5.1 channel)

before it is decoded into its various channels.

CPPM (Content Protection for Prerecorded Media)

A copy protection system used for DVD-Audio files. This unit

supports CPPM.

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.

DivX

A video compression format developed by DivXNetworks, Inc. that

compresses video files without any considerable loss of video

quality.

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 television’s

speakers. Some discs prohibit down-mixing and this unit can then

only output the front two channels.

[DVD-A] Tracks that do not allow down-mixing will not play correctly

on this unit except when connecting with an HDMI cable to an

amplifier that meets HDMI standards (Ver. 1.1 or later) and is CPPM

compatible.

DPOF (Digital Print Order Format)

DPOF is the standard printing format for still picture data taken by a

digital camera, etc. It is used for automatic printing at a photo

developing store or on your home printer.

Drive

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

(DVD) and SD card (SD). 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 listen at low

volumes but still hear dialogue clearly.

Film and video

DVD-Videos are recorded using either film or video. This 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 films.

Video: Recorded at 25 frames/50 fields per second. (PAL discs) or

30 frames/60 fields per second (NTSC discs). Generally

appropriate for TV drama programmes or animation.

Finalize

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 finalize

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

unit.

After finalizing, the disc becomes play-only and you can no longer

record or edit. However, finalized DVD-RW can be formatted to

become recordable.

Folder

This is a place on the hard disk or memory card where groups of

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

where still pictures (JPEG, TIFF) and MPEG2 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 Memory Cards and the HDD or unused +R and +R DL on

this unit. Formatting deletes irrevocably all contents.

Frames and fields

Frames refer to the single images that constitute the video you see

on your television. Each frame consists of two fields.

≥A frame still shows two fields, so there may be some blurring, but

picture quality is generally better.

≥A field 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 fluid 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 Definition Multimedia Interface)

HDMI is a next-generation digital interface for consumer electronic

products. Unlike conventional connections, it transmits

uncompressed digital video and audio signals on a single cable. This

unit supports high-definition video output [720p (750p), 1080i

(1125i)] from HDMI AV OUT terminals. To enjoy high-definition video

a high definition compatible television is required.

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.

Frame Field Field

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