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The CD+G format takes advantage of the channels R through W. These six bits store the graphics information. CD + Extended Graphics (CD+EG, also known as CD+XG) is an improved variant of the Compact Disc + Graphics (CD+G) format. Like CD+G, CD+EG uses basic CD-ROM features to display text and video information in addition to the music being played.
Compact Disc Digital Audio (CDDA or CD-DA), also known as Digital Audio Compact Disc or simply as Audio CD, is the standard format for audio compact discs. The standard is defined in the Red Book technical specifications , which is why the format is also dubbed "Redbook audio" in some contexts. [ 1 ]
A CD player is an electronic device that plays audio compact discs, ... the compact disc was "invented collectively by a large group of people working as a team." ...
The album was the first fully digital recording and the first to sell one million copies in the CD format and outsell its vinyl version, CNN reported.
CD-ROM drives are rated with a speed factor relative to music CDs. If a CD-ROM is read at the same rotational speed as an audio CD, the data transfer rate is 150 Kbyte/s, commonly called "1×" (with constant linear velocity, short "CLV"). At this data rate, the track moves along under the laser spot at about 1.2 m/s.
CD player Sony CDP-101 on display at the Museo della Scienza e della Tecnologia Leonardo da Vinci, Milan. Demonstration CD players from Sony had the disc placed vertically in the machine allowing the CD face to be visible through a transparent front whilst playing. The CDP-101 instead opted for a horizontal tray-loading system.
There, in 1965, Russell invented the overall concept of optical digital recording and playback. [1] He built prototypes, and the first was operating in 1973. In 1973, 1974, 1975 his invention was viewed by about 100 companies, including Philips and Sony, and more than 1500 descriptive brochures were distributed.
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