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A DVD-Recordable or DVD-R (pronounced "DVD Are" or "DVD Dash Are") is an optical disc with a larger storage capacity than a CD-R, typically 4.7 GB (4.38 GiB) instead of 700 MiB, although the capacity of the original standard was 3.95 GB. Pioneer has also developed a 8.54 GB dual layer version, which appeared on the market in 2005. A DVD-R can be written to only once, whereas a DVD-RW (DVD-rewritable) can be rewritten multiple times. Image File history File links Photo of an DVD-R Spindle, minor modification in gimp. ...
Image File history File links Photo of an DVD-R Spindle, minor modification in gimp. ...
A spindle (sometimes called a drop spindle) is a wooden spike weighted at one end with a wheel and an optional hook at the other end. ...
The Verbatim Corporation is a US company. ...
Image File history File links Photo of an Verbatim DVD-R disc. ...
Image File history File links Photo of an Verbatim DVD-R disc. ...
In computing, sound reproduction, and video, an optical disc is flat, circular, usually polycarbonate disc whereon data is stored. ...
This article needs to be cleaned up to conform to a higher standard of quality. ...
A CD-R (Compact Disc-Recordable) is variation of the Compact Disc digital audio disc invented by Philips and Sony. ...
This article is about the unit of measurement, for the computer hardware manufacturer see Gigabyte Technology. ...
A gibibyte is a unit of information or computer storage. ...
We dont have an article called Mib Start this article Search for Mib in. ...
GB or gb may stand for: Game Boy GB (supermarket) in Belgium GB Glace, a Swedish ice cream company Gigabit (Gb) Gigabyte (GB) Government and binding theory by Noam Chomsky Great Britain United Kingdom (ISO 3166-1 code) Guobiao, the National Standards of the Peoples Republic of China The...
Pioneer Corporation is a world leader in digital entertainment products, based in Tokyo, Japan. ...
This article is about the unit of measurement, for the computer hardware manufacturer see Gigabyte Technology. ...
A DVD disk that holds twice as much data as a single layer disk. ...
The title given to this article is incorrect due to technical limitations. ...
The DVD-R format was developed by Pioneer in autumn of 1997. It is supported by most DVD players, and is approved by the DVD Forum. Pioneer Corporation is a world leader in digital entertainment products, based in Tokyo, Japan. ...
The DVD Forum is an international organization composed primarily of hardware and software companies that use and develop the DVD format. ...
A competing format is DVD+R (also DVD+RW for the rewritables). Hybrid drives that handle both formats are often labeled DVD±R and Super Multi (which includes DVD-RAM support) and are very popular. A DVD+R disc The title of this article is incorrect due to technical limitations. ...
A DVD+RW is a rewritable optical disc with equal storage capacity to a DVD+R, typically 4. ...
It has been suggested that this article or section be merged with DVD. (Discuss) DVD±R is not a separate DVD format. ...
Super Multi is a type of DVD recorder that writes DVD-R/-RW, DVD+R/+RW and DVD-RAM formats. ...
You can recognize a DVD-RAM immediately because visually there are lots of little rectangles distributed on the surface of the data carrier. ...
The larger storage capacity of a DVD-R compared to a CD-R is achieved through smaller pit size and smaller track pitch of the groove spiral which guides the laser beam. Consequently, more pits can be written on the same physical sized disc. In order to write smaller pits onto the recording dye layer (see CD-R) a red laser beam with a wavelength of 650 nm (for general use recordable DVD) is used in conjunction with a higher numerical aperture lens. Because of this shorter wavelength, compared to CD-R, DVD-R and DVD+R use different dyes to properly absorb this wavelength. A CD-R (Compact Disc-Recordable) is variation of the Compact Disc digital audio disc invented by Philips and Sony. ...
Numerical aperture is a technical term of multiple uses: Numerical aperture of optical telecommunication fiber Numerical aperture in microscopy This is a disambiguation page — a navigational aid which lists other pages that might otherwise share the same title. ...
DVD-R discs are composed of two 0.6 mm polycarbonate discs, bonded with an adhesive to each other. One contains the laser guiding groove and is coated with the recording dye and a silver, silver alloy or gold reflector. The other one (for single-sided discs) is an ungrooved "dummy" disc to assure mechanical stability of the sandwich structure, and compatibility with the compact disc standard geometry which requires a total disc thickness of about 1.2 mm. Double-sided discs have two grooved, recordable disc sides, and require the user to flip the disc to access the other side. Compared to a CD's 1.2 mm of polycarbonate, a DVD's laser beam only has to penetrate 0.6 mm of plastic in order to reach the dye recording layer, which allows the lens to focus the beam to a smaller spot size, which is key for writing smaller pits. Repeating chemical structure unit of Polycarbonate made from Bisphenol A Polycarbonates are a particular group of thermoplastics. ...
In a DVD-R, the addressing (the determination of location of the laser beam on the disc) is done with additional pits and lands (called land pre-pits) in the areas between the grooves. The groove on a DVD-R disc has a constant wobble frequency used for motor control etc. DVDs and CDs have their data encoded on a single spiral which covers the surface of the disc. ...
Capacities
DVD-R 4.37 gig (4.70 BB)
DVD-RW 4.37 gig (4.70 BB)
DVD+R 4.37 gig (4.70 BB)
DVD+RW 4.37 gig (4.70 BB)
Other capacities (mini-disks, dual sided disks, dual layered disks, etc) can be found here: [1]
A DVD advertised as 4.7 GB may hold less than that because manufacturers quote the capacity of a writable DVD disc in decimal (base 10) rather than binary (base 2) notation. This can be confusing. While a 4.7 GB DVD technically can store 4.7 billion "base 10" bytes [4:700,000,000 bytes ÷ 1000 = 4,700,000 KB ÷ 1000 = 4,700 MB ÷ 1000 = 4.7 GB], in binary notation (as is typical with CD-R, CD-RW and most operating systems) the same disc has a capacity of roughly 4.38 GB [4:700,000,000 bytes ÷ 1024 = 4,589,844 KB ÷ 1024 = 4,482.27 MB ÷ 1024 = 4.38 GB]. More about this here: [2]
References - Bennett, Hugh. "In DVD's Own Image: DVD-R Technology and Promise." EMedia Professional July 1998: 30+
- Bennett, Hugh. Understanding Recordable & Rewritable DVD. Cupertino: Optical Storage Technology Association, Apr. 2004. [3]
See also DVD is an optical disc storage media format that can be used for data storage, including movies with high video and sound quality. ...
DVD-R DL (Dual Layer) (Also Known as DVD-R9) is a derivative of the DVD-R format standard. ...
MultiLevel Recording (ML) was a technology developed by Calimetrics to increase the storage capacity of prerecorded and writable optical discs. ...
A CD-R (Compact Disc-Recordable) is variation of the Compact Disc digital audio disc invented by Philips and Sony. ...
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