Digital Versatile Disc

Digital versatile discs, better known as DVDs, are data storage forms. Some people incorrectly call it a digital video disc.
The standard DVD format allows for two sides, each with two layers.
==Dual-Layer Capacity ==
Dual-layer capacity allows it to reach the end of the line, as longer and more detailed movies hit the shelves. Answering to this, two competing standards have emerged to succeed DVD. HD-DVD and Blu-ray are currently vying for market dominance.
==Forms of DVD==
There are many forms of DVD. This table shows them all: 
DVD Storage Amounts According to
Sides	Layers	Storage Amount
One 	One 	4.7 GB
Two 	One 	8.5 GB
One 	Two 	9.4 GB
Two 	Two 	17 GB
==References==