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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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