Question

what is Blue ray disk​

Answer 1

Answer: Blu-ray Disc, often known simply as Blu-ray, is a digital optical disc data storage format designed to supersede the DVD format, capable of storing several hours of video in high-definition.

Hopefully thinking that this will help you

Please mark me as Brainliest

Answer 2

Answer:

Blu-ray Disc (also known as Blu-ray or BD) is an optical disc storage media format. Its main uses are high-definition video and data storage. The disc has the same dimensions as a standard DVD or CD. While current optical disc technologies such as DVD, DVD-R, DVD-RW, and DVD-RAM rely on a red laser to read and write data, the new format uses a blue-violet laser instead, hence the name Blu-ray. The benefit of using a blue-violet laser (405 nm) is that it has a shorter wavelength than a red laser (650nm), which makes it possible to focus the laser spot with even greater precision. This allows data to be packed more tightly and stored in less space, so it's possible to fit more data on the disc even though it's the same size as a CD or DVD. Blue Ray disks of today are capable of storing  up to 128 GB data.