Glossary - Sony MHC-V4D Operating Instructions Manual

Glossary

Dolby Digital
This sound format for movie theaters is
more advanced than Dolby Surround Pro
Logic. In this format, the surround
speakers output stereo sound with an
expanded frequency range and a
subwoofer channel for deep bass is
independently provided. This format is
also called "5.1" with the subwoofer
channel designed as 0.1 channel (since it
functions only when a deep bass effect is
needed). All six channels in this format
are recorded separately to realize superior
channel separation. Furthermore, since all
the signals are processed digitally, less
signal degradation occurs.
DVD VIDEO
A disc that contains up to 8 hours of
moving pictures even though its diameter
is the same as an AUDIO CD.
The data capacity of a single-layer and
single-sided DVD VIDEO, at 4.7 GB
(Giga Byte), is 7 times that of an AUDIO
CD. Furthermore, the data capacity of a
dual-layer and single-sided DVD VIDEO
is 8.5 GB, a single-layer and double-sided
DVD VIDEO 9.4 GB, and a dual-layer
and double-sided DVD VIDEO 17 GB.
The picture data uses the MPEG 2 format,
one of the worldwide standards for digital
compression technology. The picture data
is compressed to about 1/40 of its original
size. The DVD VIDEO also uses variable
rate coding technology that changes the
data to be allocated according to the status
of the picture.
The audio data is recorded in Dolby
Digital as well as in PCM, allowing you to
enjoy more realistic audio presence.
Furthermore, various advanced functions
such as the multi-angle, multilingual, and
Parental Control functions are provided
with the DVD VIDEO.
GB
56
DVD-RW
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. DVD-RWs 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+RW
A DVD+RW (plus RW) is a recordable
and rewritable disc. DVD+RWs use a
recording format that is comparable to the
DVD VIDEO format.
Film based software, Video based
software
DVD VIDEOs can be classified as Film
based or Video based software. Film
based DVD VIDEOs contain the same
images (24 frames per second) that are
shown at movie theaters. Video based
DVD VIDEOs, such as television dramas
or sitcoms, displays images at 30 frames
(or 60 fields) per second.
Multi-angle function
Various angles, or viewpoints of the video
camera, for a scene are recorded on some
DVD VIDEOs.
Multilingual function
Several languages for the sound or
subtitles in a picture are recorded on some
DVD VIDEOs.
Parental Control
A function of the DVD VIDEO to limit
playback of the disc by the age of the
users according to the limitation level in
each country. The limitation varies from
disc to disc; when it is activated, playback
is completely prohibited, violent scenes
are skipped or replaced with other scenes
and so on.