Glossary
Bit rate (page 35)DVD (page 4)
Value indicating the amount of video data compressed inA disc that contains up to 8 hours of moving pictures even
a DVD per second. The unit is Mbps (Mega bit perthough its diameter is the same as a CD.
second). 1 Mbps indicates that the data per second isThe data capacity of a single-layer and single-sided DVD
1,000,000 bits. The higher the bit rate, the larger theis 4.7 GB (Giga Byte) which is 7 times that of a CD. The
amount of data. However, this does not always mean thatdata capacity of a dual-layer and single-sided DVD is 8.5
you can get higher quality pictures.GB, a single-layer and double-sided DVD is 9.4 GB, and a
dual-layer and double-sided DVD is 17 GB.
Chapter (page 5)The picture data uses the MPEG 2 format, one of the
Sections of a picture or a music piece on a DVD that areworldwide standards of digital compression technology.
smaller than titles. A title is composed of several chapters.The picture data is compressed to about 1/40 of its
Each chapter is assigned a chapter number enabling youoriginal size. The DVD also uses a variable rate coding
to locate the chapter you want.technology that changes the data to be allocated according
to the status of the picture.
Digital Cinema Sound (DCS) (page 33)Audio data is recorded in Dolby Digital as well as in
The general name of technology that Sony developed toPCM, allowing you to enjoy a more real audio presence.
enjoy surround sound in a home. It simulates the soundFurthermore, various advanced functions such as the
of a movie editing studio instead of the usual concert hallmulti-angle, multilingual, and Parental Control functions
so that you can enjoy the surround sound of a movieare provided with the DVD.
theater in the comfort of your own home. The VES
Additional Information(Virtual Enhanced Surround) system contained in DCSMulti-angle function (page 32)
programs can create the sound image of virtual rearVarious angles for the scene (viewpoints of the video
speakers from the sound of the front speakers (L, R)camera) are recorded on some DVDs.
without using actual rear speakers.
Multilingual function (pages 14, 32, 46)
Dolby Digital (pages 10, 52)Several languages for the audio track or sub-titles in a
Digital audio compression technology developed bypicture are recorded on some DVDs.
Dolby Laboratories. This technology conforms to 5.1-
channel surround sound. The rear channel is stereo andParental Control (page 48)
there is a discrete subwoofer channel in this format.A function of the DVD used to limit playback of the disc
Dolby Digital provides the same 5.1 discrete channels ofaccording to the age of the user and the limitation level in
high quality digital audio found in Dolby Digital cinemaeach country. The limitation varies from disc to disc;
audio systems. Good channel separation is realizedwhen it is activated, playback is completely prohibited,
because all of the channel data is recorded discretely andviolent scenes are skipped or replaced with other scenes,
processed in digital.and so on.
Dolby Pro Logic (page 52)Playback Control (PBC) (page 21)
Audio signal processing technology that DolbySignals encoded on VIDEO CDs (Version 2.0) to control
Laboratories developed for surround sound. When theplayback.
input signal contains a surround component, the ProBy using menus recorded on VIDEO CDs with PBC
Logic process outputs the front, center and rear signals.functions, you can enjoy playing simple interactive
The rear channel is monaural.programs, programs with search functions, and so on.
DTS (pages 12, 53)Title (page 5)
Digital audio compression technology that Digital TheaterThe longest section of a picture or a music piece on a
Systems, Inc. developed. This technology conforms to 5.1-DVD; a movie, etc., for a picture piece on video software;
channel surround. The rear channel is stereo and there isor an album, etc., for a music piece on audio software.
a discrete subwoofer channel in this format. DTS providesEach title is assigned a title number enabling you to locate
the same 5.1 discrete channels of high quality digitalthe title you want.
audio. Good channel separation is realized because all of
the channel data is recorded discretely and processed in
digital.
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ACEC
SONY
