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In computing, sound reproduction, and video, an optical disc is a flat, circular disc (usually polycarbonate) wherein data are stored in the pits (or bumps) in its flat surface — sequentially on the continuous, spiral track extending from the innermost track to the outermost track, covering the entire disc surface. The data are accessed in the disc when a special material (often aluminium) is illuminated with a laser diode. The pits distort the reflected laser light, hence, most optical discs (except the black discs of the original PlayStation video game console), characteristically have an iridescent appearance created by the grooves of the reflective layer.

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Blogs for Optical Disc

Arun's Blog " Optical disc offers 500GB storage

... about Stephen-smith " Optical disc offers 500GB storage @ April 27th, 2009 1:04 pm [...] Arun's Blog added an interesting post today on Optical disc offers 500GB ...www.blog.arun-prabha.com/2009/04/27/optical-disc-offers-500g...

Millennial Disc Blog

Millennial Disc Blog. About. about digital data preservation for a new ... will be backwards compatible with the old format — just like current optical ...blog.millenniata.com/

Techworld.com - Optical disk technology overview

Optical disk technology has played a key role in the data storage industry for ... Click below to add 'Optical disk technology overview' to your blog. ...www.techworld.com/storage/features/index.cfm?featureid=3171&...

Optical disc

... information on an optical disc is stored sequentially on ... Blog powered by Blogger. Search Engine powered by Google. Media Partners: BlogCatalog, Blogdire ...techtaxi.blogspot.com/2002/12/optical-disc.html

Optical Disc Stores 100 DVDs: related news @ Big Blog

Holographic storage technology from General Electric will allow one standard-sized optical disc to hold 100 times more data than a DVD, the company claims.bigblog.com/gadgets/optical-disc-stores-100-dvds-1970410342....

Wikipedia About Optical Disc

CD%20drive%20lens.jpg

In computing, sound reproduction, and video, an optical disc is a flat, circular disc (usually polycarbonate) wherein data are stored in the pits (or bumps) in its flat surface — sequentially on the continuous, spiral track extending from the innermost track to the outermost track, covering the entire disc surface. The data are accessed in the disc when a special material (often aluminium) is illuminated with a laser diode. The pits distort the reflected laser light, hence, most optical discs (except the black discs of the original PlayStation video game console), characteristically have an iridescent appearance created by the grooves of the reflective layer.

Write-once optical discs commonly use an organic dye, and re-writable discs use phase change alloys.

History

In 1961 and 1969, David Paul Gregg registered a patent for the analog optical disc for video recording, (US Patent 3,430,966). It is of special interest that US Patent 4,893,297, filed 1968, issued 1990, generated royalty income for Pioneer Corporation's DVA until 2007 — encompassing the CD, DVD, and Blu-ray disc systems. In the early 1960s, the Music Corporation of America bought Gregg's patents and his company, Gauss Electrophysics.

Likewise, in 1969 Holland, Philips Research physicists began their first optical videodisc experiments at Eindhoven. In 1975, Philips and MCA join efforts, and in 1978, commercially much too late, they presented their long-awaited laserdisc in Atlanta, Georgia, USA MCA delivered the discs, Philips the players; the presentation was a technical and commercial failure; the Philips/MCA cooperation ended.

In Japan and the U.S., Pioneer succeeded with the videodisc until the advent of the DVD. In 1979, Philips and Sony, in consortium, successfully developed the compact disc in 1983. The Optical Storage Technology Association (OSTA) promote standardised optical storage means. Although optical discs are more durable than earlier audio-visual and data storage formats, they are susceptible to environmental and daily-use damage. Libraries and archives enact optical media preservation procedures to ensure continued usability in the computer's optical disc drive or corresponding disc player.

First-generation

Initially, optical discs were for storing music and computer software. The laser disc format stored analog video signals, but, commercially, lost to the VHS videotape cassette, mainly its high cost and non-recordability; other first-generation disc formats are designed solely to store digital data.

Most first-generation disc devices had an infrared laser reading head. The minimum size of the laser spot is proportional to its wavelength, thus wavelength is a limiting factor against great information density, too little data can be stored so. The infrared range is beyond the long-wavelength end of the visible light spectrum, so, supports less density than any visible light colour. One example of high-density data storage capacity, achieved with an infrared laser, is 700MB of net user data for a 12cm compact disc.

Search results for Optical Disc

What is optical disk? - A Word Definition From the Webopedia Computer ...

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optical disc: Information from Answers.com

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PriceMac.com, Best deal price comparison. Find & compare the best prices on Macintosh and Apple computers ... 5.25 inch Magento-Optical Disk 4.1GB Single-Pack ...www.price.com/index.php?categoryID=2910

Optical disc - US 7457227

An optical disc includes a base having a signal reading surface at a first surface; a reflective layer provided on the signal reading surface of the base; a coverwww.patents.com/Optical-disc/US7457227/en-US/

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News about Optical Disc

Samsung SMX Camcorder

AskMenEither it was company oversight or shrewd public relations strategy, but Samsung took us almost completely by surprise when it released the newest and hottest camcorder line.http://www.askmen.com/entertainment/gadget/samsung-smx-camco...

Sony Vaio RT2SY all-in-one PC

Personal Computer WorldSony’s Vaio RT2SY is part of its all-in-one range, based around a flat-panel screen. It looks better than most all-in-one PCs and outperforms them too, but at a hefty price.http://www.pcw.co.uk/personal-computer-world/hardware/224206...

Scientists To Explore Depths Of The Universe With Herschel

SpaceDailyby Staff Writers Paris, France (ESA) May 12, 2009 After ten years of developing and building Herschel, the ESA mission will start into space on the 14th of May. In 1.5 million kilometers distance from earth the space probe will orbit the Sun for 3½ years.http://www.spacedaily.com/reports/Scientists_To_Explore_Dept...

'Sunday Morning' to Dawn in Hi-Def

Broadcasting and CableCBS News stalwart makes move this...http://www.broadcastingcable.com/article/231830-_Sunday_Morn...

DTS Reports First Quarter 2009 Results

Business Wire via Yahoo! FinanceAGOURA HILLS, Calif.----DTS, Inc. today announced its financial results for the first quarter ended March 31, 2009.http://biz.yahoo.com/bw/090511/20090511006348.html?.v=1

News about Optical Disc

Pioneer Reports 28% Fiscal Year Net Loss

TwiceIn the optical disc business, Pioneer will form a joint venture with Sharp “with the aim of restoring this business to profitability by taking advantage of the strengths of both companies. We are currently discussing the details of the joint venture ... http://www.twice.com/article/CA6658036.html?desc=topstory

Digital Storage in Consumer Electronics 2009 - Available Now

TMCnetAppendices - Flash Memory Providers - Hard Disk Drive Providers - Optical Disc Providers - Companies Providing Consumer - External Storage For more information visit http://www.researchandmarkets.com/research/ac115f/digital_storage ... http://www.tmcnet.com/usubmit/-digital-storage-consumer-elec...

Ultra-slim MSI X340 notebook out

Philippine Star OnlineThe X340 has a two-speaker audio system, a 1.3-megapixel webcam, and a DVD Super Multi optical disc drive. The X340 is embedded with the LED power-saving backlight technology, which also provides better color fullness and brightness, elevating the ... http://www.philstar.com/Article.aspx?articleId=466256&public...

RipIt 1.1.5

Mac Central ... estimates were generally around 35 to 40 minutes, most movies took less than 30 minutes to rip. Double-clicking on the resulting .dvdmovie file launches DVD Player and plays the “DVD" just as if you’d inserted the actual disc in your optical drive ... http://www.macworld.com/article/137621/2008/12/ripit.html

Pioneer Announces Business Results for Fiscal 2009

JCN NewswireIn the optical disc business, Pioneer will form a joint venture with Sharp Corporation with the aim of restoring this business to profitability by taking advantage of the strengths of both companies. We are currently discussing the details of the ... http://www.japancorp.net/Article.Asp?Art_ID=21462

Search results for Optical Disc

Optical Disc Group - Home

Welcome to Optical Disc Group . Optical Disc Group is a leading supplier of equipment and technology for the Optical Media Industry. The company offers turn-key solutions for the ... http://www.opticaldiscgroup.com/

ODT - Optical Disc Technologies

June 6th 2006 - Eindhoven, The Netherlands – Lite-On IT, one of the world’s biggest optical disc drive manufacturers, is ready for the next generation of optical disc formatshttp://www.worthtech.com/

Optical Disc Drive - What is an Optical Disc Drive? - CD Drive - DVD ...

An optical disc drive is any storage device that uses light or lasers to store or retrieve information. Common types include CD and DVD drives.http://pcsupport.about.com/od/componentprofiles/p/p_odd.htm

optical disc definition of optical disc in the Free Online ...

optical disc. A direct access disk written and read by light. CD, CD-ROM, DVD-ROM and DVD-Video are read-only optical discs that are recorded at the time of manufacture and cannot ... http://encyclopedia2.thefreedictionary.com/optical+disc

Optical disc

Introduction ==An optical disc is an electronic data storage medium that can be written to and read using a low-powered laser beam. It was originally developed in the late 1960s.http://it.toolbox.com/wiki/index.php/Optical_disc

Wikipedia results for Optical Disc

Optical disc - Wikipedia, the free encyclopedia

In computing, sound reproduction, and video, an optical disc is a flat, circular disc (usually polycarbonate) wherein data is stored in the pits (or bumps) in its flat surface ... http://en.wikipedia.org/wiki/Optical_disc

Optical disc drive - Wikipedia, the free encyclopedia

In computing, an optical disc drive (ODD) is a disk drive that uses laser light or electromagnetic waves near the light spectrum as part of the process of reading or writing data ... http://en.wikipedia.org/wiki/Optical_disc_recorder

Optical disc authoring - Wikipedia, the free encyclopedia

Optical disc authoring, including DVD and Blu-ray Disc authoring (often referred to colloquially, but improperly, as burning), is the process of assembling source material—video ... http://en.wikipedia.org/wiki/Optical_disc_authoring

Optical disc recording technologies - Wikipedia, the free encyclopedia

Optical disc authoring requires a number of different technologies working in tandem, from the media to the firmware to the control electronics of the drive.http://en.wikipedia.org/wiki/Optical_disc_recording_technolo...

Nintendo optical disc - Wikipedia, the free encyclopedia

Nintendo optical discs refer to the optical disc format used to distribute video games released by Nintendo. This includes the Nintendo GameCube Game Disc and Wii Optical Disc.http://en.wikipedia.org/wiki/Nintendo_optical_disc
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Create a Disc Image

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Prestige Artificial Cervical Disc

Prestige Artificial Cervical DiscHaving led artificial disc clinical trials for the past two years, doctors at Roper St. Francis Healthcare are now offering this technology to patients in the low country. Dr....Flash - Video

How to Fix Scratched CDs and Disc G...

How to Fix Scratched CDs and Disc Games w/ JFJ Easy ProFix CD,DVD and Game Scratches here:nhttp://store.videogamecentral.com/cd-dvd-game-music-movie-fixing-machine-easy-pro.htmlnOld SKool Fool shows how to fix and repair all your...Flash - Video

Hitting Disc Outakes

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How To Clean an Optical Disc Player

How To Clean an Optical Disc PlayerIf your CD or DVD player has become sluggish or is skipping, you may need to clean the lens. Here’s how.Flash - Video

Answers for Optical Disc

sharlz19what is an "Optical Disc" My computer is telling me to back up on to an optical disc?sharlz19an optical disc is just a CD or DVD. If you have a CD or DVD burner on your computer that is one option. I personally like to use external hard drives for backing up my documents/photos/music, etc....PhilWhat is the history of the optical disc drive?PhilWell, it was created back in 1989, by Jerry B. Dungledon. You see, Jerry was a big fan of the hip-hop music. At the time, there was a wicked feud between MC. Hammer and Vanilla Ice fans. Jerry was ...Siti Aznina bWhat is the cheapest optical disc ever sold?Siti Aznina bFree when I ordered some magazines? Can be very cheap depends on quality. I bought 100 piece imation CDRs for S$29. Imation I guess is of okay quality. Best in my view is Verbatim.wowieitsmandaBacking up laptop - optical disc same as cd-r?wowieitsmandaCD's & DVD's are an 'optical' medium. A laser 'burns' the data onto the metallic shinny substrate of the disk and a laser also 'reads' those same optically modified burn marks; hence the term 'optica...John JWhy is optical disc authoring called burning?John Jthe burner's laser etches the data into the disc. And by etching, we mean burning (melting)
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