UltraNearFieldJock
Active Member
From Wikipedia:
The readable surface of a compact disc includes a spiral track wound tightly enough to cause light to diffract into a full visible spectrum. | |
Media type | Optical disc |
---|---|
Encoding | Various |
Capacity | Typically up to 700 MiB (up to 80 minutes audio) |
Read mechanism | 780 nm wavelength (infrared and red edge) semiconductor laser (early players used helium–neon lasers),[1] 1,200 Kbit/s (1×) |
Write mechanism | 780 nm wavelength (infrared and red edge) semiconductor laser in recordable formats CD-R and CD-RW, pressed mold (stamper) in read only formats |
Standard | Rainbow Books |
Developed by | Philips, Sony |
Dimensions | Diameter: 120 mm (4.7 in) Thickness: 1.2 mm (0.047 in) |
Usage | Audio and data storage |
Extended to | |
Released |
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