Glossary
Dolby Digital
Audio compression technology developed by
Dolby Laboratories that allows to encode up to
6 channels (Right, Left, Center, Surround Right,
Surround Left and Subwoofer) in one audio
stream (AC3).
Most DVDs contain the audio data encoded in
Dolby Digital.
Dolby Surround
Audio encoding system developed by Dolby
Laboratories that allows to encode the
information of two additional channels
(Center, Surround) in a standard stereo signal.
The Dolby Surround signal can be handled on any
stereo equipment, however a special Dolby
Surround Decoder is needed to extract the Center
and Surround signals from the stereo channels.
Dolby Surround Pro Logic
An optimized decoder technology for Dolby
Surround encoded signals.
DRC
Dynamic Range Control. Dolby Digital encoded
programs can produce an enormous dynamic
range. DRC lets you limit the dynamic range of a
Dolby Digital encoded program.
An audio compression system for cinema purposes
developed by Digital Theater Systems, Inc. Only
few DVDs contain sound tracks in
r
DIGITAL
SOUND.
DVD
Digital Versatile Disc. The DVD disc is a 12 cm disc,
but can contain two information layers instead of
only one. Furthermore the digital versatile disc
can be double-sided.
The maximum amount of data on a single-layer
single-sided DVD can be up to 4.7 Gigabytes.
A two-layer double-sided DVD can contain up to
18 GB.
JPEG
Acronym for “Joint Photographic Expert Group”.
JPEG images are bitmap graphics that use a
particular compression method in order to save
memory space. The quality of image is reduced as
the compression factor increases.
Macrovision
Copyright protection technology developed by
Macrovision Corporation. Copyright owners can
protect their videocassettes from unauthorized
recording on VCRs by using Macrovision
technology.
MP3
Digital audio data compressed in MPEG1 Layer 3
format. MP3 files are approximately ten times
smaller than the uncompressed PCM data.
OSD
On Screen Display. Information about the disc
and player status are displayed directly on the TV
screen.
Parental guidance function
Frequently termed “Parental Control” or
“Parental Management Level” this function is
based on a level of certification for a film’s
contents assigned by the MPAA (Motion Picture
Association of America).
The film contents are examined with regard to
their suitability for various age groups and are
classified according into various categories.
Depending on the DVD player settings, this
classification enables certain content or entire
DVDs to be blocked for viewing by children and
teenagers.
However, hitherto only few DVD manufacturers
support this categorisation and provide their DVDs
with such classification.
Currently, the following levels are officially
recognised by the MPAA:
❏
G (General audience): suitable for all members
of the general public including children
❏
PG (Parental Guidance): allowed for general
viewing but with parental supervision
❏
PG-13 (Parental Guidance 13): allowed for
viewing by children over 13 with parental
supervision
❏
R (Restricted): parental supervision or the
accompaniment by an adult is mandatory
❏
NC-17: contents unsuitable for children
under 17
Other classifications (non MPAA):
❏
ADULT: only suitable for adults
❏
NR (Not Rated): no classification
PBC
Playback Control. Some VCD 2.0 Video CDs are
equipped with playback control, which allows
you to navigate through the disc contents with
a menu.
SVCD
Super Video CD. This is an East Asian standard for
video data on a standard 12 cm CD. The data is
stored in MPEG2 format. The maximum bit rate
for video is 2264 kbps.
Two different stereo audio soundtracks can be
recorded on a SVCD.
k
31
English
GLOSSARY & INTERNET LINKS
Summary of Contents for DOM 6500
Page 3: ...3 ...
