A storage technique that a DVD-ROM can use to achieve a higher storage capacity than a CD-ROM is to ____.
A) make the disc more dense by packing the pits closer together
B) use two layers of pits
C) be double-sided
D) all of the above

Question

Quizplus · Accepted Answer

DVD-ROMs use a combination of these techniques to achieve a higher storage capacity than CD-ROMs. DVDs are more dense than CDs, allowing for more pits to be packed closer together. DVDs also use two layers of pits, one on top of the other, which doubles the storage capacity of each side of the disc. Finally, DVDs are often double-sided, meaning that each side of the disc can hold information, effectively quadrupling the storage capacity of the disc.

A Storage Technique That a DVD-ROM Can Use to Achieve