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3. Content Introduction History Types of optical disc Formats of optical disk Working Features of optical disk Applications Advantages & disadvantages Conclusion www.engineersportal.in

4. 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.. www.engineersportal.in

5. 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) www.engineersportal.in

6. The Optical Disc World (2/4) The Boost 1985 – 2000 Introduction of CD 1982 CD-Audio 120 mm disc 74 minutes of Digital Audio CD-ROM 650 Mbytes Read Only Data CD-R 650 Mbytes of Recordable Data CD-RW 650 Mbytes of Rewritable Data All Ecma standards www.engineersportal.in

7. The Optical Disc World (3/4) Mature Market 2000 – 2015 Introduction of DVD in 1996 DVD-Video 2 hours of Standard Definition Video DVD-R & DVD+R 9,4 Gbytes of Recordable Data DVD-RAM & DVD+RW & DVD-RW 9,4 Gbytes of Rewritable Data All Ecma standards www.engineersportal.in

8. The Optical Disc World (4/4) The last one 2015 – 2025 Introduction of Blu-ray Disc in 2006 BD-Video 2 hours of High Definition Video BD-Rewritable Single & Double Layer 25/50 Gbytes Triple Layer 100 GBytes BD-Recordable Single & Double Layer 25/50 Gbytes Triple Layer 100 GBytes Quadruple Layer 128 GBytes Ecma standards ??? www.engineersportal.in

9. Types of optical disk www.engineersportal.in

10. 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. www.engineersportal.in

11. Same track on each platter Store files across multiple platters Reduces access time Logical Layout of a Disk Cylinder www.engineersportal.in

16. Data Destroyed Head Crash www.engineersportal.in

18. 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 www.engineersportal.in

19. 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 video UDO format provide a secure viewing and editing platform for film production houses. www.engineersportal.in

20. Advantages and Disadvantages of Optical Disk:- Advantage 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. www.engineersportal.in

21. CONCLUSION The 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. www.engineersportal.in

22. REFERENCE 1.http://en.wikipedia.org/wiki/Ultra_Density Opticalhttp://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 www.engineersportal.in

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