What Is DVD [Digital Versatile Disk]

What is DVD: DVD stands for Digital Video Disk or Digital Versatile Disk.

DVD or optical disk is a standard format for storing digital content for both Personal computers and some electronic products.

DVDs can store every format available DVDs as compared to CDs can store around 7 times more data.

Physically both CD and DVD are of the same diameter and thickness which is 5.25’’.

DVD comes in 4.7 GB on a single layer and nowadays it comes in 8 GB on a double layer disk.

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Advantages of Using DVD (Optical Disk)

The Optical Disk is cheaper, light in weight, easy to handle, and easy to store data.
In an Optical Disk data can be almost permanently stored.
The optical disk has a very high storage density therefore you can store a huge amount of data.
As there is no read/write head there is no risk of the head crashing against the disk surface.
The optical is usually circular in shape therefore the data is stored in proper order.
The DVD is smaller in size, therefore, needs to require less space.
You use the optical disk as the multisession disk (Where you can write data on the disk if there is space available).
Double Layer disks are used because they can store huge volumes of data

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The Optical Disk can almost store data permanently, but once the data recorded in the disk cannot be deleted or erased. (Except Re-writeable disk ).
The Speed of the data transferring rate is slower in the optical disk as compared to other mediums.
DVDs can be easily damaged if misused.
Optical Disk if used many times gets easily damaged or corrupted.

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