Computer Science for IGCSE & O level - Hardware (Section 26 - No. 24)
What is the primary advantage of using a blue laser over a red laser in optical storage devices like Blu-ray?
Longer lifespan of the disc.
Increased storage capacity.
Faster data transfer speeds.
Lower cost of manufacturing.
Maelezo
The shorter wavelength of the blue laser allows for higher density, thus more storage.