Philips basic_dvd_recording_training_manual_113 Datasheet

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Basic Training DVD Recording V1.0

Service Engineering and Training Theo Heijnen April 2007

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Agenda.

• DVD Video Systems

• Writing principle

•DVD-r and DVD+r

•Dual Media

•Smart Algo

• Ultimate simplicity

• background+VR

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DVD Video Systems

–

read-only

•DVD-Video

–

recordable / rewritable

•DVD-R(W)

•DVD+R(W)

•DVD-RAM

disks

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Like recording on a CD, recording on a DVD was the next step after introduction of the DVD.

While DVD is one world standard, DVD recordable has more standards.

There are five kinds of writable DVD technology (DVD-R, DVD+R, DVD-RW, DVD+RW and DVD-RAM). Similar to

CD-Recordable (CD-R), DVD-R and DVD+R discs are write-once incorporating a dye recording layer to which

information is irreversibly written by means of a laser heating. DVD-RAM also uses this technology but can be rewritten

roughly 100,000 times. With its hard sectors, random access capabilities and optional cartridge, DVD-RAM more

closely resembles traditional disc-based storage media than do DVD-RW and DVD+RW. This separates DVD-RAM

somewhat from the prerecorded DVD format that provides the basis for most DVD discs.

Due to technological limitations when it was introduced in 1997, DVD-R could store 3.95 GB per 12 cm disc (DVD-R

version 1.0). Capacity was increased to 4.7 GB per disc in 1999 (DVD-R version 1.9). In 2000, DVD-R was split (DVD-R

for Authoring version 2.0 and DVD-R for General version 2.0). DVD-R (Authoring) continues to use a 635 nm laser and

remains available in limited form as do 3.95 GB discs for some highly specialized applications while the less expensive

DVD-R (General) is more widely used and employs the same 650 nm laser wavelength as other DVD formats.

In 1999 DVD-RW was introduced only in Japan (version 1.0) with 4.7 GB 12 cm.

DVD-RAM first appeared in 1998 offering 2.6 GB of storage per 12 cm disc (version 1.0) growing to 4.7 GB in 1999

(version 2.0). A 1.46 GB 8 cm disc was introduced in 2000 (version 2.1).

Originally, a 3.0 GB version of DVD+RW was proposed but no products were ever released. DVD+RW came to

market in 2001 with a capacity of 4.7 GB per 12 cm disc while DVD+R arrived in 2002.

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Writing on an empty disc

Writing on a complete empty disc is like driving on a road with high speed and there are no markers on the road.

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Pregroove on (Re)Writable Discs

wobbled

pregroove

(Re)Writable Disk

laser

beam

land

empty

track

written

track

mark

(data)

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Assume you insert a absolute empty disc in the recorder. The laser unit has to write the pits and

make perfect tracks. Without any markers (see it as driving on a big road without markers) it is

impossible. At the same time, when a new disc is inserted, the recorder need to know:

Is it a DVD+RW disc, a DVD+R disc, 12mm or 8mm.

So next to the tracks, the recorder need some details from the disc.

For this reason a new, empty disc contains already some data.

At production of an empty DVDR grooves are added. During recording the recorder can put the

new pits between the grooves.

Because the grooves are wobbled, during writing the recorder can measure the recording speed of

the disc.

On the DVD+R the wobbled grooves contains extra data by changing the phase. The recorder can

read out this data during recording. On the DVD-R extra data is embossed on the grooves.

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DVD-R (minus R) Addressing unrecorded Disc.

The track of the Unrecorded Zone is formed by a continuous spiral pre-groove that extends from the inner part of the disk to the outer diameter of the disk.

The precise address information for an unrecorded disk is

embossed on the land between adjacent grooved regions.

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DVD+RW (Plus R) Addressing unrecorded Disc

The wobble of a DVD+R is modulated by wobble cycles.

The information contained in the wobble modulation is called Address-in-Pregroove or ADIP.

ADIP contains time information, disc manufacturer, writing parameters, writing speed and many more.

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Features when writing on a DVD+R(W)

• Maximum compatibility due to higher reflectivity

• Features identical to DVD+RW video

– Menu on disc – Change Index Pictures – Add and delete recordings – Rename recordings – Favourite Scene Selection

VBR

–

• Only difference +R with a +RW:

picture quality

– no overwriting

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VBR Picture Quality:

When studying the video content, details and movements in a movie change continue. When

encoding and writing the video with a constant speed (CBR = Constant Bit Rate), fast movements

and many details in the video will get lost. Result in blocking effect and loss of details.

With the VBR (Variable Bit Rate) technology used in DVD+R, the encoded DataStream changes

dependant on the video content. This means when there are less details or fast movements the data

stream is low. More details or fast movements will result in a higher bit stream.

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DVD+R Video Finalization

• DVD+R finalization closes disc to make it DVD playback compatible

– Only one minute finalizing time

• Format of finalised disc is fully compliant with DVD+RW Video format, making it compatible with DVD-Video and DVD-ROM

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What is finalizing:

When inserting a DVD-disc in a DVD player , the first the DVD player need to know is what’s on

the disc. How many titles-chapters and were to find them on the disc.

Every DVD disc contains a file with this title information. See for more details the Basic DVD

training.

When writing a video title on a DVD+RW disc, the recorder writes the menu title. Adding a new

title later on i s no problem. The existing menu title is erased and the new title written This makes

the DVD+RW disc always compatible with DVD players. No finalization needed..

That’s different with a DVD+R disc because a menu title can not be erased. Once written it

remains. When writing a title on a DVD+R after finished the recorder makes a temporary menu

title. Playback in the recorder is no problem since the recorder can read the temporary file. Any

DVD-player can not read this file, so gives Disc Error.

The finalization process ‘collects’ all the temporary titles and burns the original menu title.

The disc is closed now and nothing can be added anymore.

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DVD+RW Disc layout

DVD+RW disc layout

Menu

VMGI VTSI

VOBS

Lead

in

32MB

DVD+RW disc layout

Menu

VMGI VTSI

VOBS

Lead

in

32MB

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The upper picture shows a DVD+RW with one title. After burning the title it makes the Menu

VOB’s.

Below the DVD+RW after adding two titles more. Original menu VOB is erased and replaced.

Title 1

Title 1 Title 2

Title 3

Lead

out

Lead

out

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DVD+R Disc layout

Unfinalized DVD+R disc (open)

Virtually

+RW

RSAT

Lead

Reserved

in

32MB

Finalized DVD+R disc (closed)

Menu

VMGI

Lead

in

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Upper picture:

After burning a title the temporary menu (RSAT) is written.

Lower picture:

This shows the finalization process. Main menu VOB is written and the disc is closed.

VOBS

32MB

VTSI

Title 1

Title 2

Title 1 Title 2

Title 3

Lead

out

Lead

out

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Compatibility

Recording format compatibility with DVD Video players.

Recording format +RW +R +RW +R

on '-' disc

Disc media

DVD-V compatible * * * * finalization required

+RW/+R -RW/-R

-RW RAM

-VM-VR-VM-VRRW R

-R

RAM

•So DVD+RW is still the most compatible and easy to use format.

•3 other formats can be made compatible after finalization.

•DVD-RAM is compatible with some, mainly Panasonic DVD-V players.

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Dual Media

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Contents

• Recording made easy

– Beyond Playability –Dual Media –SmartAlgo

• Consumer benefits

– Ultimate simplicity – Pure simplicity in recording – Pure simplicity in playback – Reliable and excellent recording

• Competitive advantage

– Records smart & simple – Plays always – Plays always proof (compatibility benchmark)

TM

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Beyond playability…

• Philips DVD Players are known for their multi-format playability;

“you have it, we play it”.

• Philips DVD Recorders offer this same playback guarantee, and more…

• Philips 2005 Recorders, not only play it, they also record it all;

“Records all, plays all”

• Thanks to

Dual Media

SmartAlgo

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TM

support and Philips’ patented technology

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Dual Media

What is it ?

Philips DVD Recorders support ‘dual media’ recording, which is the ability to create fully compatible recordings on + and - discs (R and RW).

Why do I need it?

Philips DVD Recorders offer the ultimate simplicity by allowing to record on + and discs. No matter which of the two media types you choose, you will always create compatible recordings, which can be played back on any DVD player.

How does it work?

By always using the ‘+VR’ format recording irrespective of the type of disc used, Philips dual media recording offers full playback compatibility with existing DVD Players.

Glossary

Philips DVD Recorders support ‘dual media’ recording - the ability to create recordings on + and - discs (DVD+R/+RW/-R/-RW). Now you can buy any disc and the Philips recorder will always create fully compatible recordings, which can be played by any DVD player.

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Philips DVD recorder and Dual Media.

AV products

• D4.3 laser drive can deliver Dual Media read/write.

• This means that the following products support Dual Media:

– DVDR3305; DVDR3355 and DVDR3365 – DVDR3300H; DVDR3330H; DVDR5330H – DVDR5350H; DVDR7300H – And all new recorders introduced later.

• Products not supported:

– DVDR3320V. – Products launched in 2004 or before, so including DVD725/520H; DVDR61x;

DVDR7xx.

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What is it ?

The Philips SmartAlgoTMis a patented software algorithm, which intelligently chooses the most appropriate and optimal ‘Write Strategy’ (WSG) for the particular disc that is being used for recording, resulting in significantly improved recording quality and playback compatibility on widely available recordable disc media.

Why do I need it?

Today’s market knows increasing availability of non-standardized media. These discs when used for recording, cause poor recordability and corrupt discs, leading to playback compatibility issues. SmartAlgo problem, by significantly improving recording quality and playback compatibility. .

How does it work?

When a new blank media is inserted into the disc tray for recording, SmartAlgoTM first analyses the media characteristics. Based on a patented self-learning adaptive technology, it will then choose the optimal write strategy from a database of possible write strategies and apply it to the optical writing head. This results in always the best and optimal recording for the particular media type, no matter which brand and what quality of the disc being used.

Glossary

SmartAlgoTM ensures quality recordings, regardless of disc format or quality. Its patented self-learning adaptive technology chooses the optimal write strategy for the particular disc that is being used. By doing this, it significantly improves the reliability of the recording, ensuring zero failures when recording and guaranteeing playback compatibility.

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SmartAlgo

TM

solves this

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Drive without SmartAlgo

TM

• The Recorder simply records using the default available ‘write strategy’ (WSG).

• Good quality discs give good recordings, but poor quality discs fail to record, or fail to playback after recording.

Recorder drive

Blank disc for

recording

apply WSG* to the OPU*

Record

on media

OPU

control laser parameters

*WSG = write strategy

*OPU = optical writing head

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Philips Recorder drive with SmartAlgo

• The Recorder always chooses the best (optimal) WSG depending on the input disc type/quality/characteristics.

• Always good and playback-compatible recordings, no matter the quality of the disc.

Recorder drive

TM

Blank disc for

recording

Record

on media

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SmartAlgo

characteristics

analyze

media

OPU

database

choose optimal

WSG*

control laser parameters

apply chosen

WSG* to OPU*

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TM

*WSG = write strategy

*OPU = optical writing head

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Ultimate Simplicity

simplicity in

recording

+RW +R –RW -R

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Pure simplicity in recording

Records on DVD+RW/+R, DVD-RW/-R discs

Consistent finalization; only required for recordable discs (+R/-R)

Start recording directly, without choosing mode or setting

reliable & excellent

recording

Guaranteed high quality

simplicity in playback

Philips & any other DVD

player

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Pure simplicity in playback

Plays DVD, CD, DVD+R/RW, DVD-R/RW, (S)VCD, SACD discs

Plays MP3, WMA, JPEG, DivX® 3.11/4.x/5.x, XviD and MPEG-4 files

Playback compatibility of recordings on any other DVD player or PC drive

Consistency in disc menu, while playback on any other DVD player

Reliable & excellent recording

SmartAlgoTM ensures quality recordings, regardless of disc format or quality

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Pure Simplicity in Recording

• Free to choose any discs you like (plus or minus)

• Consistent and easy to remember finalization for recordable and re-writable discs

• No need to chose any Mode or Setting before pressing the record button (like DVD-R recorders)

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Philips DVD Recorders support ‘Dual Media’ recording, which is the ability to create fully

compatible recordings on + and - discs (DVD+R/+RW and DVD-R/-RW). No matter which of the

two media types you choose, you will always create playback compatible recordings with any

other DVD player.

In addition, Philips Dual Media allows you to record on any disc without having to choose a Mode

or Setting before pressing the record button. As opposed to the competition, where you’d have

to choose –VR or -VM mode before you can start recording, Philips let’s you record without

thinking. Just press the button.

Last but not least, even your post-recording or finalisation is easy and consistent; all recordable

(+R/-R) discs require finalising, and the re-writable (+RW/-RW) discs won't.

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Pure Simplicity in Playback

• Hassle free playback of your own-recorded discs in any

DVD player or PC drive

• Get the same disc menu, no matter where you playback the recorded disc

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Philips Hard Disk and DVD Recorders offer the ultimate simplicity by guaranteeing playback of

your own-recorded discs in any other DVD player or PC drive. By always using the ‘+VR’ format

while recording -irrespective the type of disc used- Philips Dual Media offers full playback

compatibility with all existing DVD Players, allowing you to share your recordings with whom

ever, where ever.

In addition, recording in ‘+VR’ format also allows the disc menu to be written onto the disc, which

ensures consistency and 'ease of use' during playback, by always providing the same disc menu, no

matter where you playback your recorded disc.

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Reliable and Excellent Recording

• Guaranteed recording, regardless the quality or format of

your disc

• Optimized recording quality, tailored to each specific disc, thanks to advanced writing strategy

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With the patented algorithm SmartAlgoTM, a Philips DVD Recorder will always record, no

matter what quality or type of disc you choose to use. Empowered by SmartAlgo

recorders adapt their writing strategy and parameters to the nature and quality of the

media and thus ensuring the best possible quality recording for that specific disc - even the

cheap or bad quality ones.

SmartAlgoTM significantly improves reliability and quality of your recording, resulting in

successful recording on blank media, no matter where it’s bought or which brand.

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TM

, Philips

TM

, Philips

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Disc

Type

+R

+RW

-R

-RW

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Records smart & simple

getting started getting finished

Dual Format

Recorders

No mode selection

Only –VR mode is possible

Must chose between –VR and -VM

Philips Recorders

No mode selection

Dual Format

NO finalisation (if –VR)

Recorders

Philips Recorders

Always finaliseAlways finalise

NO finalisationNO finalisation

Always finaliseAlways finalise

NO finalisationAlways finalise (if –VM)

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Philips Recorders offer a very consistent and easy to remember recording and finalization

protocol.

When recording, you do not have to choose a Mode or Setting. As opposed to the competition,

where you’d have to choose –VR or -VM mode before you can start recording, Philips let’s you

record without thinking.

Simply press the button. Pure simplicity in recording!

Philips post-recording or finalization protocol is easy and consistent. All recordable (+R/-R) discs

require finalising, and the re-writable (+RW/-RW) discs won't.

Simple finalization. Pure simplicity in recording!

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More Background on +VR

VM = Video Mode. When recording in this mode, the disc is finalized

and looks for a player just like a DVD-Video format. It cannot be opened anymore for appending.

When recorded in this mode, the disc can be read out on any player. However, the recording quality might not be very good.

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More Background on +VR

-VR = Dash Video Recording. This format is very versatile and can be edited.

All kinds of editing features are defined and a video recorder or a data drive that supports -VR can do a lot of tricks with this format. It is used for DVD-RW and DVD-RAM discs.

A disc that is recorded in -VR mode can only be read out on players that are prepared for this feature and not on any player (e.g. not on cheap DVD-Video players).

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More Background on +VR

+VR = Plus Video Recording. This is the Philips recording mode and ensures compatibility

of a recorded disc, even if it's not closed, with any DVD-Video player (theoretically, because there are players based on reference designs from Japan that cannot handle +RW media and therefore neither +VR).

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