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Encyclopedia results for Optical disc

Optical disc





Encyclopedia results for Optical disc

  1. Nintendo optical disc

    Infobox media name Nintendo optical discs logo image Image Nintendo GameCube Game Disc and Wii Optical Disc.jpg 256px caption Nintendo GameCube Game Disc and Wii Optical Disc type Read only memory Read only optical disc encoding Digital capacity GCN 80mm 1.4 gigabyte GB br Wii 120mm 4.7 gigabyte GB 8.54 ... use 80mm Nintendo GameCube game media br 120mm Wii game media extended from extended to optical disc authoring Nintendo optical discs are the optical disc format used to distribute video game s released by Nintendo . This includes the Nintendo GameCube Game Disc and Wii Optical Disc . The Nintendo GameCube Game Disc was created for the Nintendo GameCube , while the Wii Optical Disc was made for the Wii . The physical size of a Nintendo GameCube Game Disc is that of a miniDVD , and the Wii Optical Disc is the size of a DVD . The discs are of a proprietary format the Wii disc cannot be used on other platforms, though the GameCube disc can be used in the Wii for backward compatibility . A burst cutting area is located at the inner ring of the disc surface. Format The Nintendo GameCube Game Disc DOL 006 is the recording medium medium for the Nintendo GameCube , created by Panasonic Corporation ... area Each Nintendo optical disc contains a burst cutting area BCA mark, a type of barcode that is written ... 120 mm discs ar ca Nintendo Optical Disc cs Optick disk Nintendo es Nintendo Optical Disc fr Disque optique Nintendo it Nintendo optical disc ja Wii pl Nintendo optical disc pt Disco ptico da Nintendo ... IGN ref The GameCube Game Disc is a 1.4GB, 8 cm miniDVD based technology which reads at a constant ... ref to avoid licensing fees to the DVD Forum and to reduce loading times. The GameCube Game Disc ... disc, reducing their quality. Prior to the Nintendo GameCube, Nintendo consoles traditionally used ... 8.54 GB DVD based disc RVL 006 , enabling it to have the benefits of the Nintendo GameCube Game Disc ...   more details



  1. Optical disc authoring

    Unreferenced date February 2008 Optical disc authoring Optical disc authoring , including DVD authoring DVD and Optical disc authoring Blu ray Disc Blu ray Disc authoring often referred to colloquially ... logical volume format to then be recorded burned onto an optical disc typically a compact disc or DVD . Process To burn an optical disc, one usually first creates an optical disc image with a full file system designed for the optical disc, and then burns the image to the disc. The disc ... on the disc. Many optical disc authoring software create the disc image and burn in one ... time. There are also packet writing applications that do not require writing the entire disc at once, but allow writing parts at a time, allowing the disc to be used in the same way as rewritable media such as a floppy disk . There exist many optical disc authoring technologies for optimizing the authoring ... disc drive Authoring is commonly done in software on computers with optical disc recorder s. There are, however .... Software Use of optical disc recorders require optical disc authoring software , sometimes called ... operating systems come bundled with them. Creating an optical disc usually involves first creating an optical disc image with a full file system designed for the optical disc, and then actually burning ... . See also List of optical disc authoring software File systems Expand section date January 2007 Optical ... play devices. Video storage formats Audio formats DEFAULTSORT Optical Disc Authoring Category Computer storage media Category Optical disc authoring bs Opti ki zapis de Multisession CD it Masterizzazione ... for learning this distinction is that creating the disc image is an expensive time consuming process. Most disc writing applications will silently delete this image from the Temporary folder in which it was built unless users instruct the disc burning application to preserve the image, which can ... termed Beverage coaster coasters . Some operating systems are aware of disc images as a filesystem ...   more details



  1. Optical disc recording modes

    Optical disc authoring In optical disc authoring , there are multiple modes for recording, including Disc At Once , Track At Once , and Session At Once . CD Disc At Once Disc At Once or DAO for CD R media is a mode that Master recording masters the disc contents in one pass, rather than a Track CD track at a time as in Track At Once. DAO mode, unlike TAO mode, allows any amount of audio data or no data at all to be written in the pre gaps between tracks. One use of this technique, for example, is to burn track introductions to be played before each track starts. A CD player will generally display a negative time offset counting up to the next track when such pre gap introductions play. Pregap Pre gap audio before the first track of the CD makes it possible to burn an unnumbered, hidden audio track. This track can only be accessed by rewinding from the start of the first track, backwards into the Pregap pre gap audio. DAO recording is also the only way to write data to the unused R W sub channels. This allows for extended graphic and text features on an audio CD such as CD G and CD Text . It is also the only way to write audio files that link together seamlessly with no gaps, a technique ... R disc at once. Session At Once Session at Once or SAO recording allows multiple sessions to be recorded and finalize optical discs finalized on a single disc. The resulting disc can be read by computer ... 1 Mode 2 XA DVD R Disc At Once Disc At Once recording for DVD R media is a mode in which all data is written sequentially to the disc in one uninterrupted recording session. The on disk contents result ... yec helpcenter manuals F1.PDF ref . It uses a Disc At Once method with a fixed linear recording ..., the quantity of information that can fit on a disc is less than with a normal method 63 minutes ... ref See also Packet writing references Uncategorized date March 2011 ca DAO de Disc At Once es Disk At Once fr Disk At Once pl Disc At Once ru uk Disc At Once ...   more details



  1. Optical disc recording technologies

    Refimprove date May 2009 Optical disc authoring Optical disc authoring requires a number of different technologies working in tandem, from the media to the firmware to the control electronics of the optical disc drive drive . This article discusses some of the more important technologies. Types of recordable optical disc There are numerous formats of recordable optical disc on the market, all of which ... the effects of the pits and lands created when a commercial optical disc is pressed. Emerging technologies such as holographic data storage and 3D optical data storage aim to use entirely different ... power and adjusts it in real time. Recording modes main Optical disc recording modes Optical discs can be recorded in Disc At Once , Track At Once , Session at Once i.e. multiple burning sessions for one disc , or packet writing modes. Each mode serves different purposes Disc At Once writes the entire disc in one pass preferred for duplication masters Track At Once writes individual tracks with a gap ... drives, optical disc recorder drives have generally used industry standard connection protocols. Early ... form is magneto optical , which uses a magnetic field in combination with a laser to write ... . This form of medium is rewriteable. The most common form of recordable optical media is write once ... coming in shades of blue or pale yellow or green. Rewritable, non magnetic optical media are possible ... in the following ways Nearly all burners can slow the rotation of the disc and record at a slower ... with an extremely small gap in the recorded track on the disc. ref http web.archive.org web 20071117015804 ... than an entire session or an entire disc. When using rewritable media CD RW , DVD RW , DVD RAM , the Universal Disk Format UDF file system organizes the disc into packets that are written individually ... Packet writing is a technology that allows optical discs to be used in a similar manner to a floppy ... by Nero Burning ROM version 6. Longevity Retail recordable writable optical media contain dyes ...   more details



  1. Optical disc drive

    Optical disc authoring Image Optical drive lens.JPG thumb The CD DVD drive lens on an Acer laptop 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 to or from optical disc ... . Recorders are sometimes called burners or writers . Compact disc s, DVD s, and Blu ray disc s are common types of optical media which can be read and recorded by such drives. Optical disc drives are an integral ... in disc form, and to record discs for archival and data exchange. Optical drives along with flash ... manufacture pressed discs. Laser and optics The most important part of an optical disc drive is an optical ... rim of disc. This had led to optical drives until recently operating with a constant linear velocity ... optical drives use either a tray loading mechanism, where the disc is loaded onto a motorised or manually ... complex SCSI connectors. When the optical disc drive was first developed, it was not easy to add ... of these drives were rated at 12X and 16X. Recording schemes See also Optical disc recording ... specialised optical disc authoring software authoring software to create an disc image image ... the blank, writeable disc. Quoting Philips The Source IDentification Code SID Code provides an optical ... disc authoring software ISO image MultiLevel Recording Optical disc authoring Optical disc recording ... computer components DEFAULTSORT Optical Disc Drive Category Audio storage Category Video storage Category Optoelectronics Disc drive Category Optical computer storage ar bs Opti ki ure aj ... lt CD ROM renginys nl Cd brander ja pl Nap d optyczny ru sq Optical disc drive simple Optical disc drive sk Optick mechanika fi Optinen asema sv CD br nnare tr CD yaz c uk ... because of the low cost of optical media and the near ubiquity of optical drives in computers and consumer entertainment hardware. Disc recording is generally restricted to small scale backup and distribution ...   more details



  1. Optical disc packaging

    Main Optical disc tone date April 2008 Optical disc packaging is the packaging that accompanies CD s, DVD s, and other formats of optical disc optical media . Most packaging is rigid or semi rigid and designed ... Optical disc authoring Blank CD and DVD media are often sold in bulk packages called spindles ... not have a case for. It is a plastic case with an open right side so you can slip the optical disc ... Optical Disc Packaging Category Packaging de CD und DVD Verpackungen es Jewel case it Jewel case ... Case 02.jpg thumb 258px A jewel CD case is the original compact disc case that has been used since the compact disc was first released in 1982. It is a three piece plastic case, measuring 142  ... usually contains a compact disc along with the liner notes and a back card. Two opposing transparency ... tray that grips the disc by its hole. All three parts are made of injection molded polystyrene . ref ... hub of teeth which grip the disc by its hole. This effectively suspends the disk in the middle ... not for those that contain major film releases. Blank Blu ray Disc media is also most commonly ... shock or stress. The teeth of the hub holding the disc are also prone to failure by snapping. There is a problem ... thickness jewel cases with hinged media trays which can be lifted up to reveal the second disc ... Linn HiFi Linn are supplying them. The depth of the disc tray is also greater, allowing for two discs ... the inside edge is rounded instead of flat, and the physical position of the disc is moved slightly ..., so that the artwork on the disc itself shows through the transparent back of the case. While these reduce ... flexible polypropylene which is strong enough to protect the disc, but flexible enough not to break ... window to the envelope allowing the disc label to be seen. The envelope can also be made out of spunbonded ... packages, where the box is labeled promotionally, but the disc comes in a paper sleeve to cut ... identical to the CD package, though with raised top and bottom sections to keep the disc from ...   more details



  1. List of optical disc authoring software

    TOCright This is a list of optical disc authoring software . Open source Multi platform cdrtools , a comprehensive command line based set of tools for creating and burning Compact disc CDs , DVD s and Blu ray s. cdrkit , a fork of cdrtools by the Debian project. cdrdao , open source software for authoring and ripping of CD ROMs in Optical disc recording modes CD Disc At Once Disk At Once mode. Linux and Unix dvd rw tools , a package for DVD and Blu ray Disc writing on Unix and Unix like systems. GUI cdrtools based Brasero software Brasero , a GNOME CD DVD burning application GnomeBaker , a GNOME CD DVD burning application Graveman , a GTK CD DVD burning application project abandoned K3b , the KDE CD DVD authoring program Nautilus file manager Nautilus , the GNOME file manager includes basic CD DVD burning capabilities Serpentine software Serpentine , the GNOME audio CD burning application X CD Roast command line interface BashBurn , a menu driven program Windows InfraRecorder cdrkit cdrtools based DVD Flick ImgBurn is included Saturn Disk Image , ISO image creation Mac OS X Burn software Burn Freeware Windows CDBurnerXP Pro ImgBurn Ashampoo Burning Studio version 6 only DeepBurner DeepBurner Free DVD Decrypter DVD Shrink Proprietary Mac OS X Adobe Encore DVD Adobe Encore Disco software Disco DVD Studio Pro MacTheRipper Roxio Toast Linux GEAR PRO Linux Nero Burning ROM Linux versions NeroLINUX Unix GEAR PRO Unix Windows Adobe Encore DVD Adobe Encore Alcohol 120 Ashampoo Burning Studio AVS Video Editor Blindwrite CDRWIN CloneCD CloneDVD DeepBurner DiscJuggler Easy CD Creator Now obsolete Easy Media Creator GEAR Video MagicISO Nero Burning ROM Netblender PowerISO Roxio Roxio WinOnCD Ulead Systems Ulead DVD software UltraISO See also Comparison of disc authoring software References reflist Optical disc image software Category Lists of software Optical disc authoring software Category Optical disc authoring software es Programas grabadores de discos pticos zh ...   more details



  1. Comparison of high definition optical disc formats

    About comparative HD optical disc formats a history of the Blu ray HD DVD format war High definition optical disc format war This article compares the technical specifications of multiple high definition formats , including HD DVD and Blu ray Disc two mutually incompatible, high definition optical disc ... 19 accessdate 2008 02 19 ref Other high definition optical disc formats were attempted, including the multi layered red laser Versatile Multilayer Disc and a Chinese made format called Enhanced Versatile Disc EVD . Both appear to have been abandoned Citation needed date March 2010 by their respective ... definition Optical Media Formats br small DVD included for comparison small br Mandatory codecs must be supported by the player. Each disc must use one or more of the mandatory codecs. style background ... Blu ray Disc style background Gainsboro HD DVD style background Gainsboro CBHD CH DVD style background ... Mandatory for Blu ray Disc Player profiles Bonus View players ref HDMC table note c c yes Mandatory unk colspan 2 unk n a n a rh colspan 3 Secondary audio decoder yes Mandatory for Blu ray Disc Player ... n a rh colspan 3 Interactivity yes BDMV and BD J Blu ray Disc Java yes Standard Content and Advanced ... ray Disc Player profiles BD Live players yes Mandatory unk colspan 4 n a rh colspan 3 image resolution ... System CSS 40 bit None rh colspan 3 Regional lockout Region codes Blu ray Disc Region codes Three ... None rh colspan 3 Anti scratch coating Hardcoating of disc yes Mandatory colspan 5 partial Optional ... for new Blu ray Disc players when the Blu ray Disc Player profiles Bonus View requirement came ... Digital Plus DD on the two formats. On Blu ray Disc, DD can only be used to extend a primary Dolby ... raystats.com Stats Stats.php title Blu ray Disc Statistics accessdate 2008 07 04 ref br note ... of the format war. Capacity codecs Blu ray Disc has a higher maximum disc capacity than HD DVD 50  GB vs. 30  GB for a double layered disc . In September 2007 the DVD Forum approved a preliminary ...   more details



  1. High definition optical disc format war

    About the Blu ray HD DVD format war a comparison of formats Comparison of high definition optical disc formats Use mdy dates date August 2010 File Blu ray Disc.svg 175px right Bly ray Disc logo File HD DVD.svg 175px right HD DVD logo The high definition optical disc format war was a format war between the Blu ray Disc and HD DVD optical disc standards for storing High definition video high definition ..., Toshiba and NEC announced their competing standard Advanced Optical Disc, ref cite web url http ... techweb.com ref The competing standards had Comparison of high definition optical disc formats significant ... of Specifications for Large Capacity Optical Disc Recording Format Utilizing Blue Violet Laser ... Category Blu ray Disc Category HD DVD Category Mass media rivalries Category Optical computer storage ... studios and distributors shifted to Blu ray disc. On February 19, 2008, Toshiba officially announced ... ray Disc format. ref name Toshiba announcement cite news url http www.toshiba.co.jp about press ... density optical media following a six year Patent infringement patent dispute . ref cite web url ... Sony started two projects applying the new diodes Ultra Density Optical and, with Pioneer Corporation ... in October 2000. In February 2002, the project was officially announced as Blu ray Disc Blu ray ... accessdate 2007 10 17 author Barry Fox date 2002 02 19 work newscientist.com ref and the Blu ray Disc ... down twice by Blu ray Disc Association members, prompting the U.S. Department of Justice to make preliminary ... to avoid a costly format war, the Blu ray Disc Association and DVD Forum started to negotiate ... themselves the Blu ray Disc Association s member companies did not want to risk losing billions ... smoothly with personal computers . The Blu ray Disc s representatives defended the technology. ref ... ray Disc Association and DVD Forum announced that the negotiations to unify their standards had ... ray Disc Association Adopt Microsoft s vendor lock in proprietary HDi Interactive Format HDi instead ...   more details



  1. Disc

    using a flexible disc Hard disk drive , a non volatile magnetic data storage device Optical disc , commonly a polycarbonate disc Blu ray Disc , a high density optical disc intended mainly for video storage Compact Disc CD , a form of optical disc used mainly for audio data DVD , a form of optical disc used mainly for video and other data Enhanced Versatile Disc EVD , an optical medium based digital audio video format under development HD DVD , a high density optical disc intended mainly for video storage Holographic Versatile Disc HVD , a next generation ultra high density optical disc format replacement for blu ray Laserdisc LD , the first commercial optical disc storage medium MiniDisc MD , a magneto optical disc based data storage device Disc film , a still photography film format RAM ...wiktionarypar disc disk TOCRight Disc, Disk, DISC or DISK may refer to Data storage Disk storage , a general ... record Aluminum disc an analog recording disc used mainly for early radio recordings Acetate disc an aluminium disc coated with acetate and engraved with a modulated needle Science Astronomy Accretion disc , diffuse material in orbital motion around a central body such as a star or black hole Debris disk , a ring shaped circumstellar disk of dust and debris in orbit around a star Disc galaxy , a disc shaped group of stars Protoplanetary disk , a rotating disc of dense gas surrounding a newly formed star, a form of accretion disc Scattered disc , a distant region of the Solar System thinly ... Intervertebral disc , in animal anatomy, part of the spine Placenta or placental disc, in mammals, an organ that connects a developing fetus to its mother s uterus Optic disc , in the retina Mathematics ... gene with a wide array of interactions DISC assessment , in psychology, a group of psychometric tests based on the work of William Moulton Marston Motoring Disc brake , a device for slowing or stopping the rotation of a wheel Disc parking , a parking regulation with free parking when using a parking ...   more details



  1. MODS Disc

    Infobox Storage medium name MODS Disc type High density optical disc capacity ? owner ? The MODS Multiplexed Optical Data Storage Disc is an optical disc optical storage medium that is currently being developed by a group of researchers from Imperial College London . The new disc could have a capacity of 1 Terabyte per single disc. External links http www.windowsitpro.com article news2 one terabyte optical disk technology unveiled.aspx One Terabyte Optical Disc Technology Unveiled http www.nforcershq.com 1tb multiplexed optical data storage 100 dvds on a single disc 1TB Multiplexed Optical Data Storage 100 DVDs on a single disc Category Computer storage media Category Upcoming products compu storage stub de Multiplexed Optical Data Storage it Multiplexed Optical Data Storage ...   more details



  1. Professional Disc

    to the Blu ray Disc format, another optical disc format using blue violet lasers which is also ...Image Xdcam.jpg thumb Professional Disc Infobox media name Professional Disk for DATA logo Image Prodisk data.png image Unsourced image removed Image Prodata media.jpg 220px PDD discs. replacethisimage caption rfu c 2006 12 27 type Optical disc encoding capacity 23 giga byte GB per layer read write standard owner Sony use Data storage extended from extended to Professional Disc PFD is a recordable optical disc format introduced by Sony in 2003 primarily for its new tapeless recording system, XDCAM . It was one of the first optical formats to utilize blue violet laser , which allowed for higher density of data to be stored on optical media compared to infrared laser technology used in the CD and red laser technology used in the DVD format. Technology PFD uses a 405 nanometer nm wavelength and a numerical aperture NA of 0.85 for the laser, allowing 23 gigabyte GB of data to be stored on one 12 Centimetre cm disc the equivalent to nearly five single layer DVDs, and a 1x speed data transfer rate of 88 Megabit per second Mbit s for reading and 72 Mbit s for writing. Since the 23GB disc was released ... applications. Professional Disc for Data PDD Professional Disc for DATA PDD or ProDATA was a general .... On March 31 2007, Professional Disc for DATA reached their End of life product end of life . http www.sony.net ... between products. Sony s PDW U1 Professional Disc drive is an external drive that connects via USB ... on the Professional Disc. http forums.creativecow.net thread 142 866275 866289 See also Blu ray Disc HD DVD Ultra Density Optical Optical disc External links http www.sony.net Products MO Drive ProDATA index.html Sony Global Professional Disc for DATA http www.sonyburners.com prodata index.php Sony ... professional disc Sony b2b Professional Disk Category Computer storage media de Professional Disc for Data es Professional Disc ja Professional Disc ru PFD ...   more details



  1. Optic disc

    , with the optical disc, or blind spot, at the bottom. Pale disc A normal optic disc is orange to pink in colour. A pale disc is an optic disc which varies in colour from a pale pink or orange colour to white. A pale disc is an indication of a disease condition. Imaging of the optic disc Traditional ... disc or optic nerve head is the location where ganglion cell axons exit the human eye eye to form ... spot or the physiological blind spot . The Optic Disc represents the beginning of the optic nerve ... the eye towards the brain. Anatomy The optic disc is placed 3 to 4 mm to the nasal side of the fovea ... is unique because of the transparency of its optical media. Almost all eye structures can be examined with appropriate optical equipment and lenses. Using a modern direct ophthalmoscope gives a view of the optic disc using the principle of reversibility of light. A slit lamp slit lamp biomicroscopic ... for a detailed stereoscopic view of the optic disc and structures inside the eye. A biomicroscopic ... notes the colour, cupping size as a cup to disc ratio , sharpness of edge, swelling, hemorrhages, notching in the optic disc and any other unusual anomalies. It is useful for finding evidence corroborating ... optic neuropathy or papilledema i.e. optic disc swelling produced by raised intracranial pressure , and optic disc drusen . Women in advanced stage of pregnancy with pre eclampsia should be screened by an ophthalmoscopic examination of the optic disc for early evidence of rise in intracranial pressure ... disc. Stereoscopic images offer an excellent investigative tool for serial follow up of suspected ... HRT II , GDx VCC and optical coherence tomography Stratus OCT 3 are the currently available computerised techniques for imaging various structures of the eyes, including the optic disc. They quantify the nerve fiber layer of disc and surrounding retina and statistically correlate the findings ... follow up to monitor minute changes in optic disc morphology biology morphology . Imaging will not provide ...   more details



  1. Disc spanning

    Rotating disc computer storage media Category Optical computer storage ...Unreferenced date January 2011 Disc spanning is a feature of CD and DVD burning software that automatically spreads a large amount of data across many data discs if the data set s size exceeds the storage capacity of an individual blank disc. The advantage is that the user does not need to split up files and directories into two or more blank disc sized pieces by hand. The software may or may not support slicing a single large file in order to span it but all disc spanners can divide numerous files that are smaller than one blank disc s capacity across many discs. Disc spanning works well on CD media in many applications, but spanning on DVD media fails often. This lack of reliable DVD data disc spanning is odd, as disc spanning was used extensively on older 3.5 and 5.25 Floppy disk floppy discs . Most users Who date January 2011 assume every operating system can perform disc spanning on any media as a built in function this is incorrect. Some disc spanning schemes include a small program to reassemble the data set into the same structure it had on the source machine. This program could be written to the first disc only, or to every disc in the set. The use of disc spanning will in most cases make your files unreadable to the file system. Therefore you are bounded to use the same program later on to restore the data. Many users don t want to be bound to such solutions and use Simple disc spanning instead. Simple disc spanning is a solution that groups the files into any media grouped based on size. There is one drawback with this system. Files that are bigger than the target media will not be burnt to the drive. It is simple but powerful and a simple calculation would be How many CD DVD BD HDDVD s does this bunch of files need . The simple grouping can be displayed like ... br br Dir2 br File2 br br Disc3 45 2,130MiB br br Dir3 br etc... blockquote Simple disc spanning ...   more details



  1. Disc rot

    adopted aluminum reflecting layers as the standard for factory pressed optical disks. Signs of disc ... D and Flexplay , disposable optical disc formats designed to become unplayable after a limited time ...Merge from Compact Disc bronzing date March 2009 Refimprove date September 2010 Image Disc rot.jpg thumb 250px Disc rot Disc rot is a phrase describing the tendency of CD or DVD or other optical disks to become unreadable due to physical or chemical deterioration. The causes of this effect vary from oxidation of the reflective layer, to physical scuffing and abrasion of disk surfaces or edges, including visible scratches, to other kinds of reactions with contaminants, to ultra violet light damage and de bonding of the adhesive used to adhere the layers of the disc together. Causes Unreferenced section date September 2010 In CDs, the reflective layer is immediately beneath a thin protective layer of lacquer , and is also exposed at the edge of the disk. The lacquer protecting the edge of an optical ... a plastic disc over the reflecting layer. This means that a scratch on either surface of a DVD ... to cause corrosion, perhaps progressive corrosion. Each type of optical disk thus has different ... writable versions of each optical disk type are somewhat different as well. Finally, disks made ... music 3940669.stm BBC Is music safe on compact disc? ref Discoloration of the disc, which looks like a coffee stain on the disc. See also CD bronzing . ref name bbcSafe In audio CDs, the rot ... section date September 2010 Laser rot was a disc rot phenomenon observed by some users of the Laserdisc ... attributed to oxidation in the aluminum layers by poor quality adhesives used to bond the disc halves ... did. The name laser rot is a misnomer the disc degradation does not involve the player s laser. Laser ... during playback. The speckles increased in volume and frequency as the disc continued to degrade ... Disc Rot Category Compact Disc Category DVD Category 80 mm discs Category 120 mm discs ...   more details



  1. Disc wobble

    optical disc having wobble pits http www.patentstorm.us patents 6298021.html Optical disc and optical disc apparatus for forming wobbled tracks Category Digital rights management ca Disc Wobble es Disc ...Disc wobble , also called wobble groove, is a technology developed by Royal Philips Electronics NV. This technology together with digital watermarking could ensure that only authentic discs would be played on the next generation players that will respect these proposed forms of copy protection see also Digital rights management . This technique encodes hidden protection data onto the lead in groove along the inner edge of a disc in a difficult to duplicate manner. Normally, discs grooves form a smooth spiral, with the data encoded as reflective and absorptive spots along the path. Disc wobble reshapes the groove by wiggling the path back and forth ever so slightly in a pattern that conveys the ons and offs of digital data. The wobble is too fast for the laser pickup head to physically follow, but the error signals that keep the head s lens on track move in step with the wobble. This allows the protection data to be read by an appropriately equipped player, entirely separate from the normal data recorded in the track. If a decryption or authentication key is encoded in the wobble, then only discs which reproduce the wobble will be playable. And because of the sophisticated technologies needed to manufacture such discs, pirating wobbled discs that is authentic would be next to impossible .... If the recording device does not detect the disc as a re writable disc, that is, a read only disc, the device will not be able to copy the data from that disc. Therefore recording devices will only work ... title Inexpensive Media Recognition for Optical discs, CPTWG November 28th 2001. url http www.cptwg.org ... copy protection by using the wobble disc technology and just adding a pregroove wobble detector ... technology, disc wobble could turn out to be a very solid technique for copy protection. Original ...   more details



  1. Paper disc

    Onesource date April 2008 Refimprove date April 2008 The paper disc is one of the formats chosen to succeed the DVD . Developed by Sony and Toppan Printing, the disc can be read by Sony s new Blu ray Disc BD format and offers up to 25 GB of storage. It was officially announced on April 15, 2004. ref cite web url http www.sony.net SonyInfo News Press 200404 04 0415E title Press release accessdate 2008 04 15 publisher Sony . ref Paper discs are made of 51 paper by weight. ref cite web url http www.sony.net SonyInfo News Press 200404 04 0415E title Press release accessdate 2008 04 15 publisher Sony ref Basic structure of a paper disk is similar to the ordinary Blu ray Disk. In a BD the recording layer on which the data is stored lies under a 0.1 millimeter protective layer and on top of a 1.1 millimeter thick substrate. The substrate, or basic surface on which a material adheres, is usually made of a polycarbonate plastic, but the new disc replaces this with paper. The result is a disc of which paper makes up approximately 51 percent of its weight, Sony says. Toppan also had been flirting with the paper disc idea at their San Diego location. Toppan had a local San Diego location, Toppan Electronics at 7770 Miramar rd 92126, their Miramar location featured computer chips and some other confidential projects that really never surfaced. They closed their doors at the Miramar location for unknown reasons back in 2004 and to this day the location remains an empty building, but is still owned by Toppan. They tried a new division, Toppan Optical Products in Poway in 2004 and made TV screens for rear projection televisions, but it never caught on. This location has since been sold to General Atomics Corp. ref cite web url http www.sony.net SonyInfo News Press 200404 04 0415E title ... Press 200404 04 0415E Press release Cite journal conference Optical Data Storage 2004 04 18 location Monterey, CA. Miramar, CA date 2004 09 title Sony Toppan 25 GB paper disc based on the blu ray structure ...   more details



  1. Spelling of disc

    the compact disc medium here, the c spelling was chosen. The c spelling is now used consistently for optical media such as the compact disc and similar technologies. ref cite web url http www.wsu.edu ...For articles whose name contain disk or disc Disc disambiguation Wiktionary disc disk Disk and disc are the two alternative spellings of the descriptive word for things of a generally thin and circular geometry. These variations are due to the way in which the words originated. The discussion here somewhat focuses on how the word applies to data storage Media communication media . See Disc disambiguation for other meanings. The earlier word is disk , which came into the English language in the middle of the 17th century, and probably following pre existing words such as risk it was spelled with a k . The spelling disc was introduced in the 18th century, following an increasing tendency to base the spelling of words on their roots in this case the Latin word discus and the Ancient Greek Greek word note that kappa in Greek is usually transliterate d by c rather than k . In the 19th century, disk became the conventional spelling for audio recording s made on a flat plate, such as the gramophone record this usage gave rise to the modern term disc jockey . ref cite web url http www.bartleby.com 61 16 C0521600.html title Compact disk year 2000 work The American Heritage Dictionary of the English Language publisher Bartleby.com ref Dead link date December 2010 Early British Broadcasting Corporation BBC technicians differentiated between disks in house transcription records and discs the colloquial term for commercial gramophone records, or what the BBC dubbed CGRs . ref cite web ... what is the difference between a disc and a disk.htm What is the Difference Between a Disc ... What s the difference between a disc and a disk? refend See also Spelling Category English spelling Disc Category American and British English differences Category Computing terminology Disc ...   more details



  1. Disc protrusion

    Orphan date December 2010 unreferenced date December 2010 A disc protrusion is a disease condition which can occur in some vertebrate s, including humans, in which the outermost layers of the annulus fibrosus of the intervertebral disc s of the spine are intact, but bulge when one or more of the discs are under pressure. A disc protrusion may progress to a spinal disc herniation , a condition in which there is a tear in the annulus fibrosus. DEFAULTSORT Disc Protrusion disease stub Category Vertebral column ...   more details



  1. Disc-lock

    orphan date November 2008 unreferenced date November 2008 A disc lock is a Lock device portable security device for Motorcycle motorcycles and Scooter motorcycle scooters . Disc locks use the holes in a motorcycle s or scooter s Disc brake brake disc . A locking pin passes through the hole in the brake disc and locks to the other side of the lock, using either a pushdown and click locking mechanism or a more robust double locking mechanism. When in place, the disc lock discourages theft by blocking the vehicle from being moved in either forward or reverse direction. Category Motorcycle technology ...   more details



  1. Disc drive

    Disc Drive or Disc drive might refer to Disk storage Disk drive is a form of computer storage data storage for computer s DiscDrive was the afternoon show on CBC Radio 2 disambig ...   more details



  1. Optical storage

    Refimprove date December 2009 Optical storage is a term from engineering referring to the storage of data on an optically readable medium. Data is recorded by making marks in a pattern that can be read back with the aid of light , usually a beam of laser light precisely focused on a spinning disc. An older example, that does not require the use of computers, is microform . There are other means of optically storing data and new methods are in development. Optical storage differs from other computer data storage data storage techniques that make use of other technologies such as magnetism or semiconductor s. Optical storage can range from a single drive reading a single CD ROM to multiple drives reading multiple discs such as an optical jukebox . Single compact discs can hold around 700MB megabyte s and optical jukebox es can hold much more ref Compact Disc http en.wikipedia.org wiki Compact Disc ref . The term optical drive usually refers to a device in a computer that can read CD ROM s or other optical disc s. See also Data storage device the broader topic of all devices that store data. Optical Media board disc modern optical discs such as CD ROM s and related formats. Optical Jukebox Optical disc drive Optical tape more capacity than magnetic tape but not as cost effective Magneto optical drive combines Optical and Magnetic technologies to store data. Laser turntable a device that optically reads mechanical data storage media. HDSS Holographic Data Storage Systems potential new optical storage technology. 3D optical data storage potential new optical storage technology. Optical Storage Technology Association industry trade association References Reflist Optical storage media DEFAULTSORT Optical Storage Category Storage media compu storage stub ar es Almacenamiento ptico fr Lecteur de disque optique ro Dispozitive optice de stocare fi Optinen asema vi a quang zh ...   more details



  1. Newton disc

    orphan date April 2010 Unreferenced date October 2009 File Disque newton.png 160px right A Newton disc is a disc with segments in rainbow colours. When the disc is rotated, the colors fade to white In this way Isaac Newton demonstrated that white light is a combination of the seven different colours found in a rainbow. A Newton Disc can be created by painting a disc with the seven different colours. A combination of red, green and blue in the circular disc will yield the same result. This is due to the phenomenon called persistence of vision . It can easily be made at home using a card board piece. This property is based on the principles of dispersion of light. See also Benham s top DEFAULTSORT Newton Disc Category Isaac Newton phys stub ar es Disco de Newton fr Disque de Newton nl Newtonschijf pt Disco de Newton ...   more details



  1. Disc (galaxy)

    Unreferenced stub auto yes date December 2009 Image Ngc253 2mass barred spiral.jpg thumb The Sculptor Galaxy NGC 253 is an example of a disc galaxy A disc is a component of disc galaxies , such as spiral galaxies , or lenticular galaxies . The galactic disc is the plane in which the spirals, bars and discs of disc galaxies exist. Galaxy discs tend to have more gas and dust, and younger stars than galactic bulges, or galactic haloes. The galactic disc is mainly composed of gas, dust and stars. The gas and dust component of the galactic disk is called the gaseous disk . The star component of the galactic disk is called the stellar disk . Inconsistent orbital velocities of stars It has been noted that the orbital velocity of stars in the disc of most disc galaxies is inconsistent with the amount of luminous matter calculated for the galaxy. A possible explanation for this problem is the non luminous dark matter . See also Galactic spheroid Galactic corona DEFAULTSORT Disc Galaxy Category Galaxies Galaxy stub ca Disc gal ctic fr Disque galactique ko it Disco galattico lt Galaktikos diskas ja pt Disco gal ctico ru sk Galaktick disk th zh ...   more details



  1. Dodge disc

    Dodge disc or dodge Frisbee after the trademarked brand name is flying disc game, based on dodgeball but using a disc in place of the ball or balls. Similarly to dodgeball, once a player is hit by a disc, that is not caught by that player, the player is out and exits the field of play. If a player catches the thrown disc without it touching the ground, either before or after being hit by it, or before or after it hits another player, the player who threw the disc is out instead. The game ends when there is only one player left. The game usually ends with a shootout between two players, each with several discs. The final players tend to execute several simultaneous attacks until one is hit without catching a disc thrown by the opponent. Dodgebee is a new game that is sweeping Japan and coming more popular everyday in the United States. Dodgebee is a trademark of Hero Discs. Dodgebee is simply dodgeball with a flying disc. However, Dodgebees are very soft and thus can be thrown very fast without injuring any of the players See also Guts game &ndash a very closely related game References Unreferenced date September 2007 Reflist Category Flying disc games Category Team sports sport stub ...   more details




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