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17 Αυγ 2022 · Jointly developed by Philips and Sony, the CD was originally designed to hold 60 minutes of audio with a disc diameter of 115mm. However, the capacity was eventually extended to 74 minutes...
Standard CDs are available in two sizes. By far, the most common is 120 millimetres (4.7 in) in diameter, with a 74-, 80, 90, or 99-minute audio capacity and a 650, 700, 800, or 870 MiB (737,280,000-byte) data capacity. Discs are 1.2 millimetres (0.047 in) thick, with a 15 millimetres (0.59 in) center hole.
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 standard CD-R is a 1.2 mm (0.047 in) thick disc made of polycarbonate about 120 mm (5") in diameter. The 120 mm (5") disc has a storage capacity of 74 minutes of audio or 650 Megabytes (MBs) of data.
21 Ιουν 2023 · In 2022 the number of CDs sold decreased by 28.4% compared to 2021 to reach 34.4 million items and saw a 17.6% decrease in value representing some 3.04% of total music sales. This compares to their peak in 1997 when 942.5 million copies were sold.
Step back in time and discover the history of the revolutionary Philips Compact Disc System. Our timeline charts the development of this game-changing technology, from its humble beginnings to its status as a household name. Follow the journey of the CD system as it changed the way we listen to music and paved the way for modern digital media.
13 Ιαν 2023 · 50 years in music has seen consumption change from vinyl and cassettes to CDs and streaming. This video highlights music sales by format.
