Why Can Blu-rays Hold More Than DVDs?

The video explains how digital movies are stored as binary data on physical media like DVDs and Blu-rays. It discusses the limitations of DVDs and the advantages of Blu-rays, which use blue lasers to read smaller data pits. The development of blue laser technology, which allows for higher data density, is highlighted, including the scientific breakthroughs that led to its creation and the Nobel Prize awarded for this innovation.

Describe the significance of gallium nitride in the development of blue lasers.

How did the invention of blue lasers impact the storage capacity of optical discs?