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t. e. The compact disc ( CD) is a digital optical disc data storage format that was co-developed by Philips and Sony to store and play digital audio recordings. The first compact disc was manufactured in August 1982, and was first released in Japan in October 1982 as Compact Disc Digital Audio. The CD was more compact than the LaserDisc (LD ...
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- CD-ROM. ROM denotes Read-only memory. The content stored in these types of CDs can only be read but cannot be altered by anyone. Any standard Compact Disc player will be able to play this CD.
- Recordable CD (CD-R) Contents can be written in this media by CD drive attached to a computer or an external CD drive. A fresh CD is coated with a dye that will undergo a change in color when light is passed on it.
- Rewritable CD (CD-RW) This media uses metallic alloy as against dye in CD-R. The laser rays change the metallic alloy layer’s properties during CD writing.
- Audio CD. Sony and Philips came out with the format of this media in a document called Red Book, named after the color of the document’s cover. The official name of this format is Compact Disc Digital Audio (CD-DA).
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- CD ROM: The term ROM means "read only memory" and describes all prerecorded CD's that contain music. A recording of the music is burned into the CD by the vendor and cannot be erased or changed.
- Mini-CD: The Mini CD is only 80 mm, or about three inches, wide and holds a maximum of 24 minutes of music or 210 megabytes of data. Mini CD's are compatible with most CD players.
- CD-R: The "R" in CD-R stands for recordable. The CD-R allows the user to record data or music only once. Some CD-R's hold as much as 80 minutes of music, but 74 minutes is the usual amount of music storage available.
- CD+R: Although the "R" in CD+R stands for recordable, a CD+R disc is not compatible with a CD-R. The +R format was developed by a group of companies to increase the amount of storage available on a compact disc.
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A compact disc or CD is a form of digital media. It is an optical device which can be encoded with digital data. When you examine a CD you can tell it is mainly plastic. In fact, a CD is almost pure polycarbonate plastic. There is a spiral track molded into the top of the plastic. The surface of a CD is reflective because the disc is coated ...
The different types of compact discs include: CD-ROM Uses the same technology to read audio CDs, but able to read information to be used by computers. It quickly became the standard way sell data for computers. Recordable CD (CD-R) CD-Rs are CDs that a computer or CD recorder is able to write data to.
Yellow Book is the standard for Compact Disc‑Read Only Memory (CD‑ROM), and this extends the Red Book specification by adding two new track types: CD‑ROM Mode 1 and CD‑ROM Mode 2. Mode 1 tracks are designed for storing computer data, while Mode 2 tracks store compressed audio, video and picture data.
Mar 7, 2024 · videodisc. compact disc (CD), a molded plastic disc containing digital data that is scanned by a laser beam for the reproduction of recorded sound and other information. Since its commercial introduction in 1982, the audio CD has almost completely replaced the phonograph disc (or record) for high-fidelity recorded music.
