Panasonic DMR-BW500 Operating Instructions Manual page 115

Blu-ray disc recorder
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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 BD-R, DVD-R, DVD-R DL, DVD-RW (DVD-Video format),
+R, +R DL on this unit.
After finalising, the disc becomes play-only and you can no longer
record or edit. However, finalised DVD-RW can be formatted for
recording again.
Formatting
Formatting is the process of making media such as DVD-RAM
recordable on recording equipment.
You can format BD-RE, DVD-RAM, DVD-RW (only as DVD-Video
format), +RW, SD cards and the HDD or unused BD-R, +R and +R
DL on this unit.
Formatting permanently deletes 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.
u
Frame
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.
Gateway
IP address of the electronic device providing Internet access.
Usually called a router IP address. (e.g., 192.168.0.1)
HE-AAC (High-Efficiency Advanced Audio Coding)
This is an audio format for digital broadcasting. It has higher
compression than audio formats such as MP3, and makes it
possible for 5.1ch surround audio broadcasting or multi language
broadcasting.
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 high-definition video a high
definition compatible television is required.
IP address
A set of numbers which distinguish each PC on the network when,
for example, connected to the Internet. When using a PC in a LAN to
access a PC or device that is not included in the LAN, the IP address
is called the local IP address. (e.g., 192.168.0.10)
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.
LAN (Local Area Network)
A group of linked devices in a company, school or home.
Indicates the boundaries of a particular network.
Local storage
This storage area is used as a destination for sub contents for
playing virtual packages on BD-Video.
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.
MPEG-4 AVC/H.264
A standard for efficiently compressing and expanding colour video.
MPEG-4 AVC/H.264 is an encoding method used for recording of
the high definition videos.
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, BD-Video and 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)
r
Field
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.
Progressive/Interlace
Interlace is a conventional image signal that displays the image in 2
phases by splitting the display into odd and even scans.
Progressive will display whole image in 1 scan. Therefore, it will give
high definition image without flickering compared with interlace.
Protection
You can prevent accidental deletion by setting writing protection or
deletion protection.
Router
Distinguishes the IP address assigned to each device, such as the
PC, and relays the flow of data within the network.
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
(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.
Signal Quality
This is the guide for checking the aerial direction. The numbered
values displayed do not indicate the strength of the signal, but the
quality of the signal (the signal to noise ratio, or "S/N"). The channels
you can receive are affected by weather conditions, seasons, time
(day/night), region, length of the cable that is connected to the aerial,
etc.
Subnet mask
Enables efficient network use. A set of numbers which identify which
part of the IP address allocated to every device connected to the
router is the network portion.
Thumbnail
This refers to a miniature representation of a picture used to display
multiple pictures in the form of a list.
Virtual package
This is a function of BD-Video that plays discs and other media
(Local storage) simultaneously. For instance, the function is capable
of playing sub contents (secondary video, secondary audio, and
subtitles) which are automatically recorded to other media from the
Internet or disc.
x.v.Colour
TM
x.v.Colour
TM
is a name for devices that are compatible with the
xvYCC format, an international standard for expanded colour in
motion pictures, and that follow the rules for signal transmission.
You can enjoy vivid colours of wider colour ranges for a more
realistic picture when connected to a TV that supports the
x.v.Colour
with HDMI cable.
TM
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 1/50
of a second to create a progressive image.
th
Since progressive video does not alternate scan lines like interlace,
there is a minimal amount of screen flicker.
24p
This is a progressive image recorded at a rate of 24 frames per
second.
720p
In one high definition image, 720 (750) scan lines pass at the same
time every 1/50
th
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.
RQT9132
115

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