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CD-R
Media format
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CD-R is a digital optical disc storage format. A CD-R disc is a compact disc that can only be written once and read arbitrarily many times.
CD-R discs are readable by most CD readers manufactured prior to the introduction of CD-R, unlike CD-RW... Wikipedia
Capacity: Typically up to 700 MB (up to 80 minutes audio)
Read mechanism: 600-780 nm wavelength (infrared and red edge) semiconductor laser, 1200 Kbit/s (1×) to 100 Mb/s (56x)
Released: 1988; 36 years ago
Standard: Rainbow Books
Usage: Audio and data storage