Question

write two difference between CD and DVD .​

Answer 1

Answer:

A Digital Versatile Disc or Digital Video Disc (DVD) is similar to a CD-ROM in that you can only read data from it. The main difference is that the DVD can store much more data than a CD-ROM, CD-R, or CD-RW. DVD+R is a recordable DVD format similar to CD-R.

Answer 2

The acquire size of CD is 700 MB. While the acquire size of DVD is 4.7 GB to 17 GB.2. In CD, the recording or metal layer is situated on the top of disk. While in DVD, the recording or metal layer is situated in middle of disk.3. There is only single pit layer in CD. While there are double layers of pits in DVD.4. In CD, there is 1.6 micrometer space between the spiral’s loops. While in DVD, there is 0.74 micrometer space between the spiral’s loops.

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