Glossary - Sony MHC-V6D 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.
74
GB
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.
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.