dvd overview

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DVD Overview What is DVD-R?

– Construction– Why do “stamped” DVDs hold more video? – Why only 4.7 GB for DVD-R?

What’s the difference between

“Authoring and General” DVD-R What is DVD-RW? What is DVD + R/RW (Plus) What is a “stacking ring”

– Why ask for “no-stacking ring” DVD-R?

Why don’t recorded DVDs play in all players? Applications (14 slides)

Mitsui Advanced Media, Inc America

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What is DVD-R? DDigital VVersatile DDisc - RRecordable

– (originally Digital Video Disc) Basically a high density CD-R Two “half discs” glued together (0.6 mm each) Fully Compatible with DVD-ROM Current Data Capacity: 3.95 & 4.7 GB Uses include:

– Authoring tool for DVD Video and DVD-ROM– Data Archiving


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DVD-R Construction

Logical:DVD-R discs include the following data areas :

Power Calibration Area (PCA) Recording Management Area (RMA) Lead-in AreaData Recordable AreaLead-out Area


Physical:

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Stamped DVDs

5 versions 5 GB, 10 GB, 9 GB, 14 GB & 18 GB Can be dual layer and double-sided

5 GB: This is the most basic configuration for DVD. It has a maximum storage capacity of 4.7 GB. This 4.7 GB is 7.3 times the capacity of a 650 MB CD

10 GB: This configuration provides a total of 9.4 GB.half of the data is on the second side. It requires flipping the disc over.


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Stamped DVDs

9GB : Also referred to as " RSDL ", reverse spiral dual layer. This configuration provides a total of 8.5 GB on one side using an additional 3.8 GB on the second layer.

18 GB: This configuration provides the maximum capacity of 17 GB. Half of the data is on the second side.


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Why only 4.7 GB for DVD-R? Technically difficult to make dual layer

Must use “Semi-reflective” layer for dual layer Dye layer records data, but must use full reflective layer Difficult or impossible to “burn through” 1st layer without

damage.

Double sided DVD-R is possible but disc must be flipped Most useful for “jukeboxes” since no label is needed


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Authoring vs General DVD-RAuthoring vs General DVD-R

Two Types of DVD-R Media (version 2.0)– Authoring (In use for several years by professionals)

– Can Only be used in Pioneer DVR-S201 or DVR S101 Drives

– General Purpose (Newer, for consumer use) Each must be recorded on respective drive Each can be played back on any DVD drive General Purpose format introduced to prevent bit-for-bit copies of

copy-protected entertainment titles

Writing Compatibility

Reading Compatibility


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DVD-RW

– Reflectivity is much lower than DVD-R, so player must be designed specifically to read this format

Erasable format Uses phase change technologyNot as compatible with readers as DVD-R


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What is DVD+R/RW ? (plus)

DVD+R/RW was introduced in early 2002 as a competing format to DVD-R.– Proponents claim better compatibility among readers. – DVD-R was first to be introduced and is still the most widely

used format (January 2003)

The two formats are WRITE incompatible, but can be read on most players/drives. --You must use a +R drive to write DVD+R, R drive for DVD-R.


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Companies in the “-R camp: – Pioneer, Toshiba, Hitachi, Matsushita Electric

(Panasonic), & others.

Companies in the “+R camp: – Philips, Sony, Hewlett-Packard, Ricoh, Yamaha, and

others

These companies do not make their drives compatible with the competing formats, so the media must match the proper “camp”

What is DVD+R/RW ? (plus)

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What is a stacking ring?

Stacking rings are used to separate stacked discs during the manufacturing process.– Molded into the DVD at the time of manufacture– Remain helpful for separating discs during duplication.

So, what’s the problem? – Thermal print heads must maintain contact with the print

surface to transfer ink– By removing the stacking ring, the top surface of a DVD is

smooth, so it can be printed the same as CD

DVD


Print surface

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DVD Compatibility

Partly due to the different DVD types. Partly due to varying quality among

drives and media.


NO DVD media will play in ALL drives, but some are much better than others.

Quality counts.

The brand of media is a better indicator of compatibility than media type especially between +R & -R

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Can be played (if video or audio) or read (if data) on:(M = "Multiread" drives only. P=Proposed for future.)

Recordedmediatype: DVD-R

Drive

DVD-R/RWDrive

DVD+R/RWDrive

DVD-RAMDrive

DVD-ROMDrive

DVDVideoPlayer

CD-RDrive

CD-R/RWDrive

CD-ROMDrive

CD-AudioPlayer

DVD-R yes yes yes yes yes yes*DVD-RW yes yes yes yes yes*DVD+R yes yes yes yes yes yes**DVD+RW yes yes yes yes yes**DVD-RAM yes P

Pre-RecordedDVD

yes yes yes yes yes yes

CD-R yes yes yes yes some yes yes yes audioCD-RW yes yes yes yes P yes M PPre-RecordedVideo &Audio CD

yes yes yes yes some yes yes yes audio

DVD Compatibility Chart Much is due to the many DVD types.

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Movie studiosMovie studios – from film or digital video camera to DVD-R. Ease of editing due to random access, and ideal for AC3 sound checks due to Dolby quality.

TV / Broadcast companiesTV / Broadcast companies – news archives, sports film archives (can be customized for teams), broadcast presentations.

ConsumersConsumers- Output from Digital Video Recorders, “Semi-Professionals” document events (weddings)

DVD-R duplicationDVD-R duplication – growth potential now that disc price declined to $8 wholesale range ($16 Auth)

Internet downloadingInternet downloading – custom music videos, after drive price declines to <$500.

Training or Demonstration Films-Training or Demonstration Films- Tradeshows, Education

Game softwareGame software – beta test version use, pricing is now in a acceptable range for professional use.(PS2)

Large Scale Data ArchivingLarge Scale Data Archiving - Banking Industry, Insurance Records, Court Records --anywhere a “Bit Bucket” is needed.

Video LibrariesVideo Libraries – by institutions, corporate or home users

Government mappingGovernment mapping – example USGS, Specials Ops Command

Dolby Digital MusicDolby Digital Music --Size allows full 5.1 channel Dolby Digital


DVD Applicationsand promising US niche marketsand promising US niche markets

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