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Glossary
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
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
files contain highly compressed video with high visual quality that
maintains a relatively small file 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), video cassette (VHS) 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 hear dialogue clearly at low volume.
Film and Video
DVD-Video are recorded using either film 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 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.
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 finalise DVD-
R, DVD-R DL, DVD-RW (DVD-Video format), +R, and +R DL on the
unit. After finalising, the disc becomes play-only and you can no longer
record or edit. However, finalised DVD-RW can be formatted to become
recordable.
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VQT2J45
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(V.1.3a with Deep Colour) technology
Folder
This is a place on the hard disk, disc or SD card where groups of data
are stored together. In the case of this unit, it refers to the place where
still pictures (JPEG) 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), SD
card, +RW, 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 fields.
Frame
Field
≥A frame still shows 2 fields, so there may be some blurring between
them, 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)
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) and 1080p (1125p)]
from HDMI AV OUT terminal. 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 color still pictures. If
you select JPEG as the storage system on digital cameras, etc., the
–
data will be compressed to 1/10
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 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.
SD Video files 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
1/10 of its size without any significant 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 fit
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
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 on the screen.
(This unit is compatible with version 2.0 and 1.1.)
Field
1/100 of its original size. The benefit of
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