Which of the following does not limit how much information can be stored on a CD or DVD?
A) Wavelength of the light used to read it
B) Diffraction limits on the pit size
C) Diffraction limits on the track spacing
D) Machine limits on how small pits can be made

Question

Quizplus · Accepted Answer

The factors that limit how much information can be stored on a CD or DVD are primarily related to the physics of light and the material properties of the disc. The wavelength of the light used to read the disc (A), diffraction limits on the pit size (B), and diffraction limits on the track spacing (C) are all physical constraints that affect storage capacity. Machine limits on how small pits can be made (D) is more about the technology available for manufacturing the discs rather than a fundamental limit on storage capacity. As manufacturing technology improves, the precision with which pits can be made also improves, potentially increasing storage capacity.

Which of the Following Does Not Limit How Much Information