Sony DAV-C450 Operating Instructions Manual page 78

As one method of decoding Dolby
Surroulld:
Dolby Pro Logic Surround
produces four channels from two-channel
sound. Compared with the former Dolby
Sml-ound system, Dolby Pro Logic Surround
reproduces left-to-right panning more
naturally and localizes sounds more
precisely. To take full advantage of Dolby
Pro Logic Surround, you should have one
pair of rear speakers and a centre speaker.
The rear speakers output monaural sound.
Digital audio compression lechnology that
the Digital Thedler Systems. tnc. developed.
This technology conforms to 5. l-chamxl
surround. The rear ch'annel is stereo and
there is discrete subwoofer channel in this
format. DTS provides the same 5. I discscte
channels of high quality digital audio. Ii
superior channel separation is realized
because all the channel data is recorded
discrete and processed in digital.
A disc that contains up to 8 hours of moving
pictures even though its diameter is the same
as a CD.
The data capacity of a single-layer and
single-sided DVD, at 4..7 GB (Giga Byte), is
7 times that of a CD. Furthermore, the data
capacity of a dual-layer and single-sided
DVD is 8.5 GE, a single-layer and double-
sided DVD 9.4 GB, and a dual-layer and
double-sided DVD 17 GB.
The picture data uses the MPEG 2 format,
one of the worldwide standasds of digital
compression technology. The picture data is
compressed to about l/40 of its original size.
The DVD also uses the variable rate coding
technology that changes the data to be
allocated according to the status of the
pi&se.
The audio data is recorded in
Dolby Digital
as well as in BCM, allowing you lo enjoy
more real audio presence.
Furthermore, various advanced fuuctions
such as the
multi-angle,
~r~n~tili~~gua~, and
Parental Control functions arc provided with
the LB/D.
__---.---- .^ .._ ..__... --._-.I.
I%-a
Various angles, or viewpoints of ttte video
camera for a scene arc recorded on some
DVDs.
in a picture arc recorded on some DVDs.
-.."-..- ._-.. . .
A functioa of the
DVD
to limit playback of
the disc by the
age
of the users according to
the limitation level in each coinitry. The
limitation varies fmm &UC to
disc: when it is
activated, playback is completely ~~~ohibited~
violent scenes are skipped or replaced with
other scenes and so on.
Signals encoded on V~~~~~ CDs (Versiorr
2.0) to control playback.
By using menu screens recorded on VIDEO
CDs with PBC functions,
yoo
can enjoy
playing simj3le interactive programs,
programs with
search
functions, etc.
This system is used to protect copyrights, A
region number is allocated on each
DVD
system or
DVD disc according to the sales
region. Each
region code
is shown on the
system as well as ou the disc packaging. The
system can play the discs &at match its
region co
'lie system can also play discs
with the ' mark. Even when the region
code is not shown on the DV83, the region
limit may still he activated.