Glossary
Bitstream
This is the digital form of
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
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
When recording on this unit Dolby Digital (2 channel) is the default audio.
Down-mixing
This is the process of remixing the
Drive
In the instance of this unit, this refers to the hard disk (HDD), disc (DVD) and SD card (SD)([EH68]). 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
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
Aprocess that makes play of a recorded
After finalising, the disc becomes
Folder
This is a place on the hard disk, disc or SD card ([EH68]) where
groups of data are stored together. In the case of this unit, it refers to the place where still pictures (JPEG) and MPEG2 ([EH68]) are stored.
Formatting
Formatting is the process of making media such as
You can format
this unit.
Formatting permanently deletes all contents.
RQT9075
Frames and fields
Frames refer to the single images that constitute the video you see on your television. Each frame consists of two fields.
u |
| r |
Frame | Field | Field |
≥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)
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), 1080p (1125p)] from HDMI AV OUT terminals. To enjoy
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
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
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.
Pan&Scan/Letterbox
In general,
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
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.
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