Sony XAV-A1: Glossary

Glossary

Chapter

DVD VIDEO

Sections of a picture or a music feature that

A disc that contains up to 8 hours of moving

are smaller than titles. A title is composed of

pictures even though its diameter is the same

several chapters. Depending on the disc, no

as a CD.

chapters may be recorded.

The data capacity of a single-layer and single-

sided DVD is 4.7 GB (Giga Byte), which is 7

Dolby Digital

times that of a CD. The data capacity of a

Digital audio compression technology

double-layer and single-sided DVD is 8.5 GB,

developed by Dolby Laboratories. This

a single-layer and double-sided DVD is 9.4

technology conforms to 5.1-channel surround

GB, and double-layer and double-sided DVD

sound. The rear channel is stereo and there is

is 17 GB.

a discrete subwoofer channel in this format.

The picture data uses the MPEG 2 format,

Dolby Digital provides the same 5.1 discrete

one of the worldwide standards of digital

channels of high quality digital audio found

compression technology. The picture data is

in Dolby Digital cinema audio systems. Good

compressed to about 1/40 (average) of its

channel separation is realized because all of

original size. The DVD also uses a variable

the channel data are recorded discretely and

rate coding technology that changes the data

little deterioration is realized because all

to be allocated according to the status of the

channel data processing is digital.

picture. Audio information is recorded in a

multi-channel format, such as Dolby Digital,

DTS

allowing you to enjoy a more real audio

Digital audio compression technology that

presence.

Digital Theater Systems, Inc. developed. This

Furthermore, various advanced functions

technology conforms to 5.1-channel surround

such as the multi-angle, multilingual, and

sound. The rear channel is stereo and there is

Parental Control functions are provided with

a discrete subwoofer channel in this format.

the DVD.

DTS provides the same 5.1 discrete channels

of high quality digital audio.

DVD-RW

Good channel separation is realized because

A DVD-RW is a recordable and rewritable

all of the channel data is recorded discretely

disc with the same size as the DVD VIDEO.

and little deterioration is realized because all

The DVD-RW can be recorded in two

channel data processing is digital.

different modes: VR mode and Video mode.

VR (Video Recording) mode enables various

programming and editing functions, some of

which are limited in the case of Video mode.

Video mode complies with DVD VIDEO

format and can be played on other DVD

players while a DVD-RW recorded in VR

mode can only be played on DVD-RW

compliant players. The “DVD-RW”

appearing in this manual, and the on-screen

displays refer to DVD-RWs in VR mode.

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Glossary

DVD+RW

A DVD+RW is a recordable and rewritable

disc.

DVD+RWs use a recording format that is

comparable to the DVD VIDEO (digital video

disc, video) format.

Film based software, Video based

software

DVDs can be classified as Film based or

Video based software. Film based DVDs

contain the same images (24 frames per

second) that are shown at movie theatres.

Video based DVDs, such as television dramas

or sit-coms, display images at 30 frames (or

60 fields) per second.

JPEG (Joint Photographic Expert

Group)

Under the auspices of the International

Organization for Standardization (ISO), JPEG

is defined as a universal standard format for

digital compression and decompression of

still images for use in computer related

systems. Usually, the compression rate is

variable before visible degradation occurs.

Still images are compressed about 1/10 to

1/100 original size.

Title

The longest section of a picture or music

feature on a DVD, movie, etc., in video

software, or the entire album in audio

software.

Track

Sections of a picture or a music feature on a

CD or VIDEO CD (the length of a song).

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