Why can a DVD hold more then a CD?

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1074793

2026-04-10 04:50

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A Digital Versatile Disc (DVD) uses new optical storage technology to hold more data than a Compact Disc (CD).

  • A DVD reader uses a different laser wavelength than a CD reader.
  • A DVD have small pits in it to hold more data. Smaller pits means more can be burnt into the disc.
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