Sony MHC-GZR8D Operating Instructions Manual page 146

Dolby Surround Pro Logic
As one method of Dolby Surround,
Dolby Surround Pro Logic produces
four channels from 2channel sound.
Compared with the former Dolby
Surround system, Dolby Surround Pro
Logic reproduces left-to-right panning
more naturally and localizes sounds more
precisely. To take full advantage of Dolby
Surround Pro Logic, you should have one
pair of surround speakers and a center
speaker. The surround speakers output
monaural sound.
DTS
Digital audio compression technology
developed by DTS, Inc. This technology
conforms to 5.1-channel surround. The
surround channel is stereo and there
is discrete subwoofer channel in this
format. DTS provides the same 5.1
discrete channels of high quality digital
audio. The good channel separation is
realized because the all channel data
is recorded discrete and processed in
digital.
1
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.