CD vs DVD surface, light micrograph

CD vs DVD surface, light micrograph

C012/5214 Rights Managed

Request low-res file

530 pixels on longest edge, unwatermarked

Request/Download high-res file

Uncompressed file size: 25.2MB

Downloadable file size: 1.4MB

Price image Pricing

Please login to use the price calculator


Caption: CD vs DVD surface. Light micrograph comparing the surface of a compact disc (CD, lower right) with that of a DVD (upper left). Both discs are pressed with a series of fine depressions, or pits, (dots) representing a digitised musical signal capable of being read by a laser. Each depression is either long or short, and represents a bit. Eight bits form a byte. CDs can hold millions of bytes of data, whereas the increased number of pits on the DVD show that it is capable of holding many times the data of a CD. Magnification: x900 when printed 10 centimetres wide.

Release details: Model release not required. Property release not available.

Keywords: audio, audio sound, bit, bits, cd, coloured, communication, communications, compact disc, compared, comparing, comparison, data, depressions, digital, digitised, disk, dvd, high-tech, light micrograph, lm, music, pattern, pit, pits, pitted, repeated, sound, storage, surface, technological, technology, vs

Licence fees: A licence fee will be charged for any media (low or high resolution) used in your project.