Content Introduction History Types of optical disc Formats of optical disk Working Features of optical disk Applications Advantages.

ULTRA DENSITY OPTICAL DISC

APRESENTATION ON-

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Content• Introduction• History• Types of optical disc • Formats of optical disk• Working • Features of optical disk• Applications• Advantages &

disadvantages• Conclusion

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Introduction

UDO has been designed specifically to provide compliant and secure archival storage for valuable business information such as high volume emails and document images, customer records, audio or video files, legal or financial information and design documentation.

Ultra Density Optical (UDO) is an optical disc  format designed for high-density storage of high-definition video and data..

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History

The Beginning 1975 – 1985

Laser Disc ( 300 mm / 30 min)

30 cm discs with analog video

Philips standard ISO/IEC standard

12” WORM (300 mm / 1.25 GByte)

12 inch discs for Write Once data recording

Direct ISO/IEC standard

5 ¼ “ MO ( 130 mm / 650 Mbyte )

130 mm discs for Read & Write date recording

Ecma ISO/IEC Standard

90 mm MO disc (90 mm / 128 MByte )

90 mm discs for Read & Write data recording

Ecma ISO/IEC standard

The Optical Disc World (1/4)

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The Optical Disc World (2/4)

The Boost 1985 – 2000Introduction of CD 1982CD-Audio

120 mm disc74 minutes of Digital Audio

CD-ROM650 Mbytes Read Only Data

CD-R650 Mbytes of Recordable Data

CD-RW650 Mbytes of Rewritable Data

All Ecma standards

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The Optical Disc World (3/4)

Mature Market 2000 – 2015Introduction of DVD in 1996DVD-Video

2 hours of Standard Definition Video

DVD-R & DVD+R9,4 Gbytes of Recordable Data

DVD-RAM & DVD+RW & DVD-RW9,4 Gbytes of Rewritable Data

All Ecma standards

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The Optical Disc World (4/4)

The last one 2015 – 2025Introduction of Blu-ray Disc in 2006 BD-Video

2 hours of High Definition Video

BD-RewritableSingle & Double Layer 25/50 GbytesTriple Layer 100 GBytes

BD-RecordableSingle & Double Layer 25/50 GbytesTriple Layer 100 GBytesQuadruple Layer 128 GBytes

Ecma standards ???

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Types of optical disk

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Formats of optical disk Rewritable Media:- In practice, UDO rewritable media operates like a standard magnetic disk. Files can be written, erased and rewritten, dynamically reallocating media capacity.

True Write Once Media :- Unlike rewritable media, the write once recording surface cannot be erased or altered, giving true write once media the highest possible level of physical record authenticity.

Compliant Write Once Media:- UDO Compliant write once media has the same operational properties as true write once media with one important difference. Compliant write once media can be destroyed once their retention period expires.

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Same track on each platterStore files across multiple plattersReduces access time

Logical Layout of a DiskCylinder

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Data DestroyedHead Crash

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Features of optical disk

(a) Data authenticity and integrity(b) (c)High Capacity and Scalability(c) (d) Rapid Information Access(d) (b) Long-term Data Retention(e) (e) Low Total Cost of Ownership

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Applications

Applications

Archival storage

Currently UDO has an expected data archival life of around 50 years. Apart from the storage size, the discs (like Magneto Optical discs) are designed for durability and long term reliability.

Secure videoUDO format provide a secure viewing and editing platform for film production houses.

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Advantages and Disadvantages of Optical Disk:-

Advantage:

Cheap media.

CD & DVD can hold lots of media.

Easy to carry

Small in size.

looks cool.

Disadvantages

Easy to scratch.

Easy to break.

Can get damaged.

Small capacity compared to some flash/thumb drive.

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CONCLUSIONThe UDO was designed to use proven technologies at all stages in order to ensure that products could be delivered on time and to budget.

Too often, companies try to push a new technology to its limits too early and suffer the inevitable delays to program schedules, cost overruns and failures to deliver to specifications.

In contrast, UDO takes the existing proven elements of Blue-ray technology to deliver a family of professional data storage products with the initial generation.

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REFERENCE1. http://en.wikipedia.org/wiki/Ultra_Density Optical

2. http://www.seminarstopics.com/seminar/ultra-density-optical-technology

3. http://seminarprojects.com/ask/ultra-density-optical-disc

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