**Contents**show

## What is the diameter of a DVD disc?

DVDs resemble compact discs as their physical dimensions are the same (120 mm (4.72 inches) or **occasionally 80 mm (3.15 inches) in diameter**) but they are encoded in a different format and at a much higher density.

## What is the diameter of a CD in CM?

By far, the most common is **120 millimetres (4.7 in)** in diameter, with a 74- or 80-minute audio capacity and a 650 or 700 MB (737,280,000-byte) data capacity.

## What is the radius of a compact disc?

A compact disc has a radius of **6 centimeters**.

## How many MB fit on a DVD?

DVD or digital versatile disc is a type of optical disc storage and it came after CD’s by the end of 1995. DVDs have single and double-sided versions, and for example, a double-sided, double-layer DVD can hold 17.08 GB of data. That means **17080 MB in decimal** and 17489.92 MB in binary bases.

## What is the size of CD and DVD?

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.

## How is a DVD different from a CD?

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**. … The data on a DVD+RW disc can be erased and recorded over numerous times.

## What is the measure of circumference of compact disk?

the circumference of a compact disc is **28.26cm**.

## Why are CDs 74 minutes?

The original target storage capacity for a CD was one hour of audio content, and a disc diameter of 115 mm was sufficient for this, however both parties [Sony and Philips] extended the capacity to 74 minutes to **accommodate a complete performance of Beethoven’s 9th Symphony**.