A double layered DVD is a DVD that has two layers of data. The first layer is the main movie or video content, while the second layer is used for extras such as deleted scenes, behind-the-scenes footage, or alternate endings.

To create a double layered DVD, the video content is divided into two parts: the main movie and the extras. The main movie is placed on the first layer of the DVD, while the extras are placed on the second layer.

When you burn a double layered DVD, the DVD burner will create two separate DVD files: the main movie …