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Topic: Advanced Optical Disc

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Advanced optical disk

DVD

Blue ray disk

DVD plus RW Alliance

DVD Forum

EVD

Optical disc

Laserdisc

Compact disc

Dolby Digital

MiniDisc

Dolby Laboratories

Red Book (audio CD standard)

Home cinema

VT100

HD DVD - Wikipedia, the free encyclopedia HD DVD is similar to the competing Blu-ray Disc, which also uses the same CD sized (120 mm diameter) optical data storage media and 405 nm wavelength blue laser. HD DVD (High Density Digital Versatile Disc) is a digital optical media format which is being developed as one standard for high-definition DVD. Blu-ray Disc was developed outside of the DVD Forum, and was never submitted to the forum for consideration. en.wikipedia.org /wiki/Advanced_Optical_Disc   (468 words)

Holographic Versatile Disc - Wikipedia, the free encyclopedia Holographic Versatile Disc (HVD) is an advanced optical disc technology still in the research stage which would greatly increase storage over Blu-ray and HD-DVD optical disc systems. The blue-green laser reads data encoded as laser interference fringes from a holographic layer near the top of the disc while the red laser is used to read servo information from a regular CD-style aluminium layer near the bottom. Servo information is used to monitor the position of the read head over the disc, similar to the head, track, and sector information on a conventional hard disk drive. en.wikipedia.org /wiki/Holographic_Versatile_Disc   (456 words)

Ultimate AV: Blu-ray Gets a Boost Blu-ray won the pole position on June 13, when the Forum voted not to accept the Advanced Optical Disc (AOD) format proposed by NEC and Toshiba. June 22, 2003 &; Even though it hasn't been officially submitted to the DVD Forum for approval, the Blu-ray high-definition optical disc format appears to have the inside track for becoming the de facto standard. AOD was promoted as a way to leverage "existing DVD-making infrastructure and thereby continue to exploit investments already made in DVD disc manufacturing," according to a news brief from Consumer Electronics Daily. www.guidetohometheater.com /news/11572   (335 words)

Disk Whatever their heritage, in computer jargon today it is common for the k-spelling to refer mainly to magnetic storage devices, while the c-spelling is customary for optical media such as the compact disc and similar technologies. A variety of optical storage media, such as the compact disc, DVD, and laserdisc, are used for digital data or video. In biology, an intervertebral disc is a cartilaginous joint between vertebrae in the spine of vertebrate animals. www.brainyencyclopedia.com /encyclopedia/d/di/disk.html   (425 words)

Optical Disc Recording & Data Throughput For a writing drive to successfully create a disc, it must receive an uninterrupted flow of data that must be transferred at a speed equal to or greater than the recording speed of the writing drive. In cases where the speed of the input source is not fast enough to support "on-the-fly" duplication, an intermediate disc image file can be written to a hard disk. If the data buffer empties (buffer under-run error), the recording process could fail and ruin all blank discs. www.padus.com /support/manuals/450/html/08_Advanced_Concepts/06_Optical_Disc_Recording_and_Data_Throughput.htm   (421 words)

ipedia.com: Advanced Optical Disc Article The Advanced Optical Disc (AOD) is similar to the Blu-Ray disc: a CD size (120 mm) optical data storage media, that uses a blue laser at 405 nm wavelength. The Advanced Optical Disc is similar to the Blu-Ray disc : a CD size optical data storage media, that uses a blue laser at 405 nm wavelength. The cover layer is like the DVD 0.6 mm thick (unlike the Blu-ray Disc at 0.1 mm). www.ipedia.com /advanced_optical_disc.html   (355 words)

DVDHelp.us FAQ Advanced Optical Storage Research Alliance (AOSRA), formed by Taiwan's Industrial Technology Research Institute (ITRI) has it's own variations of blue-laser formats. Plans are to produce dual-layer recordable discs, holding about 50 GB per side, but such discs will take a few additional years to appear. Up to 27 GB per layer using 0.1-mm recording depth (to reduce aberration from disc tilt), 405-nm blue-violet semiconductor with 0.85 NA lens design to provide 0.32 µm track pitch (half that of DVD) and as small as 0.138 µm pit length. www.dvdhelp.us /faq/index.php?qid=170&catid=28   (743 words)

Bayer Upgrades Optical Media Lab Bayer established its Advanced Optical Disc Laboratory in 1987 to help the company and the CD industry continue to make strides in material and processing development. These technical requirements mean DVDs demand a high-performance optical media substrate, such as Makrolon DP1-1265 polycarbonate, and high-performance molding equipment to control the disc quality parameters of birefringence, dishing and pit replication. The lab is devoted primarily to the optimization of existing polycarbonate formulations, the development of new polymer systems and the development of new and/or improved processing technologies. www.bayerus.com /new/1997/6.3.97.html   (545 words)

DVD Article, DVD Information DVD is an optical disc storage media format that isused for playback of movies with high video and sound quality and for storing data. During the early 1990s there were two high density optical storage standards indevelopment; one was the Multimedia Compact Disc (MMCD) backed by Philips and Sony, and the other was the Super Disc (SD) supported by 8 major consumer electronics giants including Toshiba and Time-Warner. Discs can also specify that the player use Macrovision, an analog anti-copying mechanism that prevents the consumer from copying the video onto a VCR tape. www.anoca.org /video/disc/dvd.html   (2231 words)

Macworld: News: NEC shows prototype dual DVD/HD-DVD drive NEC Corp. has demonstrated for the first time a prototype optical disc drive that uses a single optical head to read DVDs and discs recorded in a blue-laser format that is awaiting final approval as the next-generation DVD standard. An optical head compatible with CD, DVD and HD-DVD and capable of both read and write operations is expected to be developed in the first half of next year, Inada said. NEC is continuing to work on the optical head, enabling a data recording function and expanding its compatibility to include CDs, which use a red laser of a different frequency to DVD. www.macworld.com /news/2003/12/18/nec/index.php?pf=1   (370 words)

Optical Discs Close-Up. New Materials Rise to the DVD Challenge. August 1999 Three new or improved polycarbonate resins for optical discs were introduced by GE Plastics, Pittsfield, Mass. DVDs are casting a new light on optical discs--quite literally, since new generations of high-density disc players are expected to use blue-green lasers with shorter wavelengths in order to read the smaller pits of new higher-density data discs. It is said to have exceptional optical purity and clarity, with a refractive index of 1.51 and high light transmittance across the full spectrum--including the blue-green range. www.plasticstechnology.com /articles/199908cu1.html   (1541 words)

Blu-ray Disc and HD-DVD The HD-DVD format, originally called AOD or Advanced Optical Disc, is based on much of today's DVD principles and as a result, suffers from many of its limitations. On the other hand, the Blu-ray Disc format was designed to be a viable technology for a period of at least 10 to 15 years. Blu-ray Disc provides 67% more capacity per layer at 25 GB for a single layer and 50GB for a double layer disc. bluraydisc.com /general_information/Section-13564/Index.html   (495 words)

BravoPro CD/DVD disc publishing system by Primera It also prevents the feeding of two discs into the recordable drive – a common problem with other, less advanced picking systems. An Advanced User Interface allows experienced users to access powerful features such as disc streaming, data format conversion, and much more. When deciding upon a disc publishing system, one of the most important factors you’ll likely consider is the number of discs you’ll be able to produce per hour. www.primera.com /bravopro_disc_publisher.html   (837 words)

ITworld.com - Optware to commercialize 1T-byte optical disc The disc and player are based a 12-centimeter optical disc like existing CDs and DVDs, but the new disc will be able to store about 120 DVD-format movies, according to Atsushi Machida, a spokesman for Optware. Conventional optical disc systems use a single red laser beam to write a dot, containing one bit of information, to a disc surface. The high capacity -- around 20 times the storage available on existing discs -- and a data transfer speed of 1G bps (bits per second) have been achieved by using digital volume holography read/write technology, developed under the DARPA (Defense Advanced Research Project Agency) project in the U.S., according to Optware's statement. www.itworld.com /Comp/3786/IDG020220optware/pfindex.html   (438 words)

DVD Recordable NEC and Toshiba have unveiled the first prototypes of desktop computer drives that are based on Advanced Optical Disc, a next-generation blue-laser based format that supports storage of 20GB of data on a 4.7-inch disc. The drives are around 1.6 inches high, which is the same size as most optical drives, and a prototype demonstrated by NEC was running high-definition video, the requirement that is likely to drive the market for higher capacity discs. The discs are one of a number of areas where enhancements are being considered for Blu-ray, said Atsushi Nakamura, an engineer from Panasonic's system device group. www.dvd-recordable.org /PrintArticle343.phtml   (514 words)

Stand alone optical disc player module (US5910933) The power source component provides power to the optical disc mechanism when the player is operating in the stand-alone mode. Optical disc playback apparatus and method which utilizes single RAM for data decoding and TOC processing The player in one embodiment comprises a housing, an optical disc mechanism, a power source component, and one or more audio controls. www.delphion.com /details?pn=US05910933__   (368 words)

Howstuffworks "How Blu-ray Discs Work" The other big player is HD-DVD, also called AOD (Advanced Optical Disc), which was developed by electronics giants Toshiba and NEC. According to T3: Pioneer goes beyond Blu-Ray, Pioneer is developing an optical disc that will blow away the hard disc in most of our PCs in terms storage capacity, holding 500 GB of data. In the meantime, JVC has developed a Blu-ray/DVD combo disc with an approximate 33.5-GB capacity, allowing for the release of video in both formats on a single disc. electronics.howstuffworks.com /blu-ray4.htm   (418 words)

Tape-Disc Business: What is the Mini Disc? (Sony Corp.'s Mini Disc)@ HighBeam Research Designed so that it would fit into a shirt pocket, the Sony Mini Disc is a new personal digital audio media based on an advanced miniature optical disc. The disc, measuring 64mm (2.5 inches) in diameter, is enclosed in a plastic cartridge measuring 72mm x 68mm x 5mm. To maintain a compact size as well as to reduce costs they are recorded on only one side and encased in a plastic cartridge for protection... www.highbeam.com /library/doc0.asp?DOCID=1G1:12292835&refid=holomed_1   (170 words)

Blu-ray and AOD The AOD format also uses blue laser technology with a 405 nm wavelength and uses a 12-cm optical disc. In addition, by using a disc structure with a 0.1mm optical transmittance protection layer, the Blu-ray Disc diminishes aberration caused by disc tilt. The Blu-Ray Disc uses a cartridge to protect the optical disc’s surface from dust, scratches, and fingerprints. www.infocellar.com /DVD/blu-ray-aod.htm   (2955 words)

PCWorld.com - Sony Boosts Blue Laser Storage Each camp is trying to establish the next-generation optical disc de facto standard by rushing into the commercialization of a compliant product. Blue-laser diodes are expected to be a key component for next-generation high-volume optical discs. The AOD, proposed by Toshiba and NEC, is also based on a 405-nanometer-wavelength blue laser; it can store up to 20GB of data on one side of a disc. msn.pcworld.com /news/article/0,aid,108079,00.asp   (349 words)

20030304-525.html An opposing blue-laser format called "Advanced Optical Disc" created by Toshiba and NEC is being designed as an alternative to Blu-ray. The Blu-ray optical disc format, which is backed by 9 companies (including Philips, Samsung, Pioneer, and Sharp), will have many new features and advantages including a maximum storage size of 27GB and write speeds of 36Mbps (4.3 MB/s). Details on this rival format are a little more sparse, but apparently it will be able to store 15GB on a single layer disc and 30GB on a dual layer disc. arstechnica.com /news.ars/post/20030304-525.html   (496 words)

Generation blue The San Diego Union-Tribune An optical disc stores digital information – the zeroes and ones of binary computer language – as microscopic dots on the surface of the disc. Blu-Ray Disc, backed by Sony, Sharp, Dell and others, packs about 25 gigabytes in a single layer, compared with a standard DVD that holds about 4.5 gigabytes in a single layer of pre-recorded content. Sales of the new discs and hardware to use them are likely to rival the record-setting purchases of DVD players, according to the Consumer Electronics Association. www.signonsandiego.com /uniontrib/20041004/news_mz1b4blue.html   (1263 words)

Sony to launch 23GB optical data disc in November InfoWorld News 2003-10-21 By Martyn Williams, IDG News Service The format, called Professional Disc for Data, is being positioned by the Tokyo company as a replacement for the 5.25-inch MO (Magneto-Optical) disc format that it currently sells in the professional data storage space. Plasmon Plc, a Cambridge, U.K.-based data storage systems company has developed its own format, called UDO (Ultra Density Optical), that it is also targeting as a replacement for MO. UDO can accommodate 30G bytes of data on an optical disc that is enclosed in a cartridge made to the same dimensions as current MO cartridges. The key to the higher capacity of Professional Disc is in the type of laser used to read and write information from and to the disc. www.infoworld.com /article/03/10/21/HNsonydisc_1.html   (1567 words)

IODRA Advanced Optical Disc Holland B.V. Hagenweg 7e, 4131 LX Vianen, The Netherlands The only interest is to support the optical disc replicators in today’s licensing and legal jungle. IODRA is The International Optical Disc Replicators Association. www.opticaldisc-systems.com /2003JulyAug/IODRA74.htm   (534 words)

Sumitomo Mass-Produces GaN Substrate - June, 2003 Although confusion remains over whether Blu-ray or the Advanced Optical disc format offers the better standard for next-generation high-capacity optical disc equipment, this isn't an issue for Sumitomo Electric Industries Ltd. of Tokyo. Sumitomo is banking so much on optical disc technology to replace conventional DVD players that it expects the substrate production ultimately to become the third element of its compound semiconductor business alongside GaAs and InP. Unlike this equipment, which uses GaAs as the light source for reading and writing data to and from optical discs, next-generation optical disc players based on violet lasers will have five times the storage capacity. www.photonics.com /spectra/business/XQ/ASP/businessid.881/QX/read.htm   (426 words)

Macworld: News: Time is running out for optical disc format compromise Macworld: News: Time is running out for optical disc format compromise Time is running out for optical disc format compromise He said the Blu-ray Disc group’s stance hasn’t changed and that it continues to believe that its format is best for the future needs of the consumer electronics, computer gaming and PC data storage markets. www.macworld.com /news/2005/08/23/optical/index.php?pf=1   (401 words)

DVD Talk Forum - Advanced Optical Disc (AOD) vs BLU-RAY: Support 1080p, WM9/Corona, 5 Mbit/sec Audio.. We also have the Advanced Optical Disc from Toshiba/NEC which is vying to become 'HD-DVD' in competition to Blu Ray. Advanced Optical Disc (AOD) vs BLU-RAY: Support 1080p, WM9/Corona, 5 Mbit/sec Audio.. Whether AOD or Blu Ray prevails, it is certain that consumers will support AOD or Blu Ray Based on which format supports the best video compression scheme as well as the highest quality of audio. www.dvdtalk.com /forum/showthread.php?t=314627   (4575 words)

News in brief: Jazz, Blu-Ray rival, 3G phones (September 2003) - News - Compound Semiconductor Samsung is one of a number of companies in the Blu-Ray Disc consortium, while Toshiba and NEC are developing a rival standard, Advanced Optical Disc (AOD). Samsung Electronics of Korea and Japan’s National Institute of Advanced Industrial Science and Technology (AIST) have developed a new optical disc technology capable of storing 200 Gb of data on a disc, compared with 23 Gb for the emerging Blu-Ray Disc system. Jazz plans to introduce the world’s fastest SiGe technology, a novel optical disc technology has been developed that stores 200 Gb of data, and NTT DoCoMo plans to launch a 14 Mbit/s 3G cell phone service in early 2005. www.compoundsemiconductor.net /articles/news/7/9/2/1   (482 words)

Primera - ComposerMax - Features The advanced robotics transport and load discs into four integrated DVD±R/CD-R drives. After recording, discs are moved to the optional disc printer. Simply load up to 400 discs at a time in the four 100-disc input bins. www.primera.com /composermax_disc_duplicator.html   (275 words)

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