Where the blue-ray format get its name from?

The Blu-ray format gets its name from the blue laser technology used to read and write data on the discs. Unlike the red lasers used in standard DVDs, the blue laser has a shorter wavelength (405 nm), allowing it to store more data in the same physical disc size. This increased capacity enables higher resolution video and improved audio quality. The name "Blu-ray" is a combination of "blue" and "ray," referencing the laser technology.