Sony DVD Rom/DVD Video User Manual download pdf (Page 13)

DVD Video

2. DVD Video

2.1 General

DVD-Video is a new media for the distribution of home

videos. The digital nature of this new media offers

several new features to the consumer.

Amongst these features are:

• High video quality based on MPEG2 compression

and the ability to playback both aspect ratios of 4:3

and 16:9.

• A DVD-Video can hold up to 8 different audio tracks

(streams). Each track can be used for a different

language. It can also be utilized for high quality

stereo audio with a resolution of 16 bit and 48 kHz, or

for theatre quality surround audio, like Dolby Digital

AC-3 or multichannel 5.1.

• Up to 32 different streams of subtitles can be placed

on a DVD-Video, used as language subtitles, as

menu highlights or as instructions for interactive

functions.

• Digital copy protection via CSS and analogue copy

protection via Macrovision.

• Multibranching is another feature of DVD-Video that

simply offers the possibility to playback one title with

different parts of this title, which can be interactively

selected by the viewer. In addition, the multiangle

option allows a scene of a movie title to be viewed in

different angles.

• Most of the DVD-Video players imply a region code

corresponding to one of the six regions in the world

where it is sold. This regional coding optionally ena-

bles playback of a DVD-Video title in certain regions

only.

• DVD-Video discs can be prepared with a ”Parental

Lock” in order to restrict the playback only by usage

of a correct password.

2.2 Input media

for DVD-Video

Sony DADC prefers a DLT4000 or (DLT7000/DLT8000)

format as standard input source. The tape should be

recorded in DDP 2.0. If different systems are applied

(such as e.g. ”DLT 1” or ”HP V80”), reading problems

will occur. If you have no adequate DLT-recorder please

send the content on DVD-R (Remark: a DVD-R can only

be used if a DVD 5 is replicated; if a DVD 9 is to be

pressed, there is no other way than a DLT.)

However, for complete authoring services Sony DVD

Center Europe will be happy to assist you further.

(please contact us at +43/(0)6246/880-1610 or visit our

Web-Page ”www.sonydvdcenter.com”.

2.3 Details on DVD

Authoring Possibilities

2.3.1 Video

DVDs can be produced for both PAL and NTSC video

standards. The aspect ratio of the source material can

either be 4:3 or 16:9. The viewer has the choice of

several output options on most players, according to

the monitor. For example, in the case of a widescreen

source the viewer can select between letterboxed and –

if encoded during authoring – pan/scan playback on

a 4:3 screen.

2.3.2 Audio

A DVD may contain up to eight different soundtracks,

for example a feature film in different languages, each of

which can be in one of the following formats:

Any stereo track can be encoded Dolby Pro Logic

Surround, to extend the compatibility with existing

home entertainment equipment.

Please note that this encoding is not implemented

during DVD premastering, but has to be completed

during preparation of the mastertape.

The sampling frequency on a DVD is 48 kHz.

2.3.3 Subpictures

Subpictures can be keyed into the videosignal and are

used for several applications on the disc, for example:

• Linear PCM mono or stereo

(equivalent to the CD format)

• DTS (Digital Television Standard)

• MPEG1 mono or stereo

• MPEG2 multichannel

• Dolby Digital AC-3 mono,

stereo or multichannel 5.1

• as menu highlights

• as logo

• as instructions for an interactive function

• for language subtitling, display of karaoke

lyrics etc.

2. DVD-Video

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Sony DVD Rom/DVD Video User Manual Page 13

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