Sony Handycam DCR-DVD100 Manuel utilisateur

2DVD Handycam TECHNOLOGY HANDBOOK

Introduction

DVD Handycam TECHNOLOGY HANDBOOK

CAMCORDERS: AN INTRODUCTION

Sony led the way in video camcorders. The first consumer cassette

camcorder was developed by Sony. And in 1985, Sony's compact,

lightweight 8mm Handycam®camcorders expanded the world of home

video by making memories easy to shoot, play, and share anytime,

anywhere.

Sony also led the way in digital technology. Sony CD and MD recording

raised the standard of excellence in music reproduction. And Sony DV

Handycam models adopted digital video for high-quality recording and

multi-generation editing.

Now, Sony takes the next step in digital video: DVD Handycam®

camcorders. They use DVD discs as their digital recording medium -- so

movies can be shot on disc, stored on disc, edited in the camcorder,

even uploaded to a PC for creative editing and easy sharing.

DVD offers significant advantages over cassette tape. Discs allow instant

access and rapid scene search without fast-forward or rewind. They

record video, audio, even still images. They're more compact and durable

as a storage and playback medium.

Best of all, DVD recordings can be played back on PCs, DVD players,

even PlayStation®2 video game consoles -- for instant compatibility with

over 100 million playback devices around the globe.

Sony DVD Handycam camcorders are new and exciting. This handbook

explains basic DVD technology, highlights DVD Handycam camcorder

features, answers common questions, and helps you understand and

appreciate the exciting possibilities of this next step in camcorder

evolution.

4DVD Handycam TECHNOLOGY HANDBOOK

TABLE OF CONTENTS

CAMCORDERS: AN INTRODUCTION 3

DVD: A BRIEF HISTORY 5

DVD MEDIA TECHNOLOGY 6

DVD VIDEO RECORDING APPLICATIONS 10

THE DVD HANDYCAM CONCEPT 12

DVD HANDYCAM RECORD MODES AND MEDIA 14

DVD HANDYCAM STILL-IMAGE RECORDING 15

DVD HANDYCAM EDITING 16

FAQ (FREQUENTLY ASKED QUESTIONS) 18

GLOSSARY 20

DVD Handycam TECHNOLOGY HANDBOOK

DVD: A BRIEF HISTORY

The DVD format was introduced in 1996. Today, DVD is accepted worldwide, in use for a broad range

of applications -- and its next major impact will be felt in the home video recording market.

DVD Advantages

The development of DVD started 12 years ago. Inspired

by the success of the CD (Digital Audio Compact Disc)

format for music and data recording, manufacturers

began working toward the goal of a new disc format that

would hold two or more hours of high-quality video

recording.

In 1994, two standards were proposed: “MMCD,” from

Sony and Philips, and “SD,” from Toshiba and Pioneer. At

the end of 1995, an agreement was reached on a

common standard. At this point the DVD Consortium was

formed and DVD was ready for marketing. Its first

applications were for prerecorded movies and computer

software (DVD-ROM). Recording standards soon

followed; the DVD-R Book and DVD-RAM Book

standards were defined in 1997.

In 1999, the DVD-RW Book defined a 4.7 GB rewritable

disc format using a short-wavelength red semiconductor

laser. Currently, standardization efforts are underway to

define a next-generation optical disc system using blue

laser technology.

1996 DVD-Video

1997 DVD-R/DVD-RAM/DVD+RW

1998

1999 DVD-RW

2000

2001

2002 DVD+R

Next-generation optical disc

DVD is more compact

Because DVD discs are more compact

than videocassettes, they take up less

space inside the camcorder and are

easier to carry, shelve and archive.

DVD provides random access

Videotapes must be wound and rewound

on their reels, which takes time and

creates wear. DVD discs never require

rewinding -- and the search process is

virtually instantaneous.

DVD is more durable

Videocassette recording requires contact

between videotape and recording head. In

the DVD system, the optical laser pickup

does not touch the disc itself, so there is

far less wear during recording and

playback.

DVD recordings can't be

erased

Videotapes can be erased within a VCR or

by exposure to strong magnets. With DVD,

there is no danger that contents may be

accidentally erased.

6DVD Handycam TECHNOLOGY HANDBOOK

DVD MEDIA TECHNOLOGY

The Basic Structure of a DVD

Although a 12cm (4-3/4") DVD is the same size as a standard CD, its high-density format allows

more than 7 times more data to be recorded on a single disc.

DVD consists of a dual-layered disc 12cm (4-3/4") or 8cm (3-1/8") in diameter. Each layer has a thickness of 0.6mm

(1/32").

Various kinds of DVD suit the needs of various applications, such as DVD-ROM (for playback only), DVD-R (for one-

time recording), and DVD-RW (for rewritable recording).

DVD MEDIA TECHNOLOGY

●Structure of DVD-ROM

Protection Layer

Record Layer

Base

DVD Handycam TECHNOLOGY HANDBOOK

DVD MEDIA TECHNOLOGY

DVD-ROM for Playback Only

DVD-R for Recording Once

DVD-ROM discs are for commercial prerecorded movies,

computer software programs, etc. Data is stored in the

form of microscopic “pits” in the record layer of the disc.

These pits are scanned by a laser and then “read” as

minute reflections.These minute changes in reflection

DVD-R discs are for recording only once. Since data

recorded to disc cannot be erased, DVD-R is a good

choice for data that requires long-term storage. Unlike

commercially recorded DVD-ROM discs, DVD-R discs

are recorded by a process of chemical change within the

surface of the disc. After a DVD-R disc is recorded, data

●Record Layer of DVD-ROM

Pit

Track pitch

0.74µm

●Record Layer of DVD-R

Track pitch

0.74µm

Groove

Land

are converted to signals for further processing. There are

four different DVD configurations: single-sided discs with

one or two recordable layers, and double-sided discs

with one or two recordable layers.

is read by the optical pickup in a manner similar to the

process of reading a DVD-ROM disc; this similarity

makes DVD-R recordings compatible with DVD playback

units. Recorded (or “written”) areas of a disc are called

“grooves”; unrecorded (or “unwritten”) area is called

“land.”

8DVD Handycam TECHNOLOGY HANDBOOK

DVD MEDIA TECHNOLOGY

DVD-RW for Repeatable Recording

DVD-RW discs allow repeated recording, erasing, and

re-recording of data. Data is rewritable approximately

1,000 times. This capability makes DVD-RW widely used

in applications that require data editing and future

updating. The recording and playback process is

basically similar to the process of DVD-R recording.

DVD MEDIA TECHNOLOGY

Track pitch

0.74µm

Groove

Land

●Record Layer of DVD-RW

In addition to DVD-ROM, DVD-R and DVD-RW, the following DVD standards also are currently being marketed.

DVD-RAM A rewritable media allowing up to 100,000 reliable rewriting operations. It cannot be played back on

standard DVD players; only players supporting DVD-RAM can be used.

DVD+R A once-only recording media similar in capability to DVD-R.

DVD+RW A rewritable media similar in capability to DVD-RW.

Other DVD Formats

DVD Handycam camcorders use both DVD-R and DVD-RW discs. Discs are 8cm (3-1/8") in diameter; they can be

single-sided with one recordable layer, or double-sided with one recordable layer per side.

In the case of DVD-RW, however, the chemical change

that takes place within the surface of the disc during

recording is reversible, allowing data to be erased and

re-recorded. DVD-RW recordings are also compatible

with most DVD players.

DVD Handycam TECHNOLOGY HANDBOOK

DVD MEDIA TECHNOLOGY

DVD Capacity

DVD-ROM, DVD-R and DVD-RW discs 12cm (4-3/4") in

size, which all share the same “one layer, one side”

structure, have a storage capacity of 4.7 GB --

approximately 7 times larger than the capacity of a CD

disc the same size. DVD Handycam camcorders use

smaller DVD-R or DVD-RW discs 8mm (3-1/8") in size.

4.7GB 1.4GB

●Comparison of CD-ROM and DVD-ROM

CD-ROM DVD-ROM

the minimum

pitch size

0.83µm

diameter of spot

1.4µm

Track pitch

1.6µm

the minimum

pitch size

0.4µm

diameter of spot

0.9µm

Track pitch

0.74µm

About Lasers and Lenses

DVD recording uses a short-wavelength red semiconductor laser. The wavelength of this laser is 650nm (nanometers). The

NA (numerical aperture) of the object lens used for optical pickup is 0.6. This combination yields a small-diameter “spotlight”

and high-density recording capacity. By comparison, CD recording uses a semiconductor laser with a wavelength of 780nm

and a NA of 0.45.

12cm (4-3/4")-diameter disc 8cm (3-1/8")-diameter disc

These smaller discs, single-sided with one recordable

layer per side, have storage capacity of 1.4 GB. Small

double-sided discs with one recordable layer per side are

also available for DVD Handycam camcorder recording;

these discs have a storage capacity of 2.8 GB -- enough

to hold approximately two hours of video recording.

10 DVD Handycam TECHNOLOGY HANDBOOK

DVD VIDEO RECORDING APPLICATIONS

What is an Application Standard?

There are two video recording applications for DVD discs: DVD-Video, offering maximum

compatibility, and DVD-VR (Video Recording), for simple in-camera editing.

An application standard, such as DVD-Video or DVD-VR, is not the same as a physical standard, such as DVD-ROM,

DVD-R, or DVD-RW. A physical standard refers to the disc itself; application standards refer to the recording process,

and determine the recording method to be used for various purposes. For the purpose of recording video with

maximum flexibility for playback compatibility, the DVD-Video application standard is used. For recording video with

limited playback compatibility but additional in-camera editing, the DVD-VR (Video Recording) application standard is

used.

DVD VIDEO RECORDING APPLICATIONS

About Each Application Standard

DVD-Video

DVD-Video was first developed for commercial DVD movies. DVD-Video creates recordings that cannot be edited in the

camcorder. It allows up to 2 hours of moving images and sound. MPEG 2 coding is used for video; Dolby AC-3 coding is

used for sound. DVD-Video recordings can be played back on virtually all DVD players.

DVD-VR

DVD-VR modified the concept of DVD-Video, allowing user-friendly editing functions for consumer recording. DVD-VR

recordings can be played back on a limited number of DVD players that support the DVD-VR application standard.

●How physical standards compare to application standards

Physical standard DVD-R DVD-RW

Application standard DVD-Video DVD-VR

feature

Although DVD-R can only be written once, it

can be played back on many models of DVD

player.

DVD-RW is rewritable for further recording

and can be initialized for re-use, even after

finalizing. However, not all models of DVD

player can play DVD-RW.

DVD recorded in the DVD-Video standard can be played back

on many models of DVD player.

DVD recorded in the

DVD-VR standard can be

edited.

: Can be played back on a DVD player.

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