Sony RDR-GX255 Service Manual Download

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Glossary

Chapter (page 41)

Sections of a picture or a music feature that are
smaller than titles. A title is composed of several
chapters. Depending on the disc, no chapters may
be recorded.

Copy protection signals (page 48)

Copy restriction set by copyright owners, etc.
These signals are included in some software or TV
programs and restrict recording on this recorder.

Dolby Digital (page 81)

Digital audio compression technology developed
by Dolby Laboratories. This technology conforms
to multi-channel surround sound. The rear channel
is stereo and there is a discrete subwoofer channel
in this format. Dolby Digital provides the same
discrete channels of high quality digital audio
found in “Dolby Digital” theater surround sound
systems. Good channel separation is realized
because all of the channel data is recorded
discretely, and little deterioration occurs because
all channel data processing is digital.

DTS (page 81)

Digital audio compression technology by DTS,
Inc. This technology conforms to multi-channel
surround sound. The rear channel is stereo and
there is a discrete subwoofer channel in this
format. DTS provides the same discrete channels
of high quality digital audio.
Good channel separation is realized because all of
the channel data is recorded discretely, and little
deterioration occurs because all channel data
processing is digital.

DVD+RW (page 12)

A DVD+RW (read “plus RW”) is a recordable and
rewritable disc. DVD+RWs use a recording
format that is comparable to the DVD VIDEO
format.

DVD-RW (page 12)

A DVD-RW is a recordable and rewritable disc
that is the same size as a DVD VIDEO. The DVD-
RW has two different modes: VR mode and Video
mode. DVDs created in Video mode have the
same format as a DVD VIDEO, while discs
created in VR (Video Recording) mode allow the
contents to be programmed or edited.

DVD+R (page 12)

A DVD+R (read “plus R”) is a recordable disc that
is the same size as a DVD VIDEO. Contents can
be recorded only once to a DVD+R, and will have
the same format as a DVD VIDEO.

DVD-R (page 12)

A DVD-R is a recordable disc that is the same size
as a DVD VIDEO. Contents can be recorded only
once to a DVD-R. The DVD-R has two different
modes: VR mode and Video mode. DVDs created
in Video mode have the same format as a DVD
VIDEO, while discs created in VR (Video
Recording) mode allow the contents to be
programmed or edited.

DVD VIDEO (page 15)

A disc that contains up to eight hours of moving
pictures on a disc the same diameter as a CD.
The data capacity of a single-layer and single-
sided DVD is 4.7 GB (Giga Byte), which is 7
times that of a CD. The data capacity of a double-
layer and single-sided DVD is 8.5 GB, a single-
layer and double-sided DVD is 9.4 GB, and
double-layer and double-sided DVD is 17 GB.
The picture data uses the MPEG 2 format, which
is a worldwide standard of digital compression
technology. The picture data is compressed to
about 1/40 (average) of its original size. The DVD
also uses a variable rate coding technology that
changes the data to be allocated according to the
status of the picture. Audio information is
recorded in a multi-channel format, such as Dolby
Digital, allowing you to enjoy a more real audio
presence.
Furthermore, various advanced functions such as
the multi-angle, multilingual, and Parental
Control functions are provided on the DVD.

101

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HDMI (High-Definition Multimedia Interface)
(page 22)

HDMI is an interface that supports both video and
audio on a single digital connection. The HDMI
connection carries standard to high definition
video signals and multi-channel audio signals to
AV components such as HDMI equipped TVs, in
digital form without degradation.
The HDMI specification supports HDCP (High-
bandwidth Digital Contents Protection), a copy
protection technology that incorporates coding
technology for digital video signals.

Interlace format

Interlace format shows every other line of an
image as a single “field” and is the standard
method for displaying images on television. The
even number field shows the even numbered lines
of an image, and the odd numbered field shows the
odd numbered lines of an image.

Original (page 57)

Titles actually recorded on a DVD-RW (VR
mode) or DVD-R (VR mode). Erasing original
titles frees up disc space on DVD-RWs.

Playlist (page 57)

Playback information created from the actual
recordings on a DVD-RW (VR mode) or DVD-R
(VR mode). A Playlist leaves the original titles as
they are, and contains only the information needed
to control playback. A Playlist title takes up very
little disc space.

Progressive format (page 80)

Compared to the Interlace format that alternately
shows every other line of an image (field) to create
one frame, the Progressive format shows the entire
image at once as a single frame. This means that
while the Interlace format can show 30 frames/60
fields in one second, the Progressive format can
show 60 frames in one second. The overall picture
quality increases and still images, text, and
horizontal lines appear sharper.

Title (page 41)

The longest section of a picture or music feature
on a DVD, movie, etc., in video software, or the
entire album in audio software.

Track (page 41)

Sections of a music feature on a CD (the length of
a song).

102

DVD Audio/Subtitle
Language

When you play a DVD VIDEO, the language of
the selected audio track or subtitle is abbreviated
as follows. See page 84 to change the audio track
or subtitle.

Abbreviation

Language

ARA

Arabic

BUL

Bulgarian

CHI

Chinese

CRO

Croatian

CZE

Czech