Blu-ray is a type of optical storage device that is capable of storing larger amounts of data than CDs and DVDs, with capacities of up to GB.

Optical storage devices are popular for storing music, movies, and other forms of multimedia because they provide high-quality sound and video playback that is superior to that of many other storage .

Data on an optical storage device is usually stored in a single spiral track that starts at the center of the and spirals outward to the edge.

One of the disadvantages of optical storage devices is that they can be to damage from scratches and other physical wear and tear.

Another optical storage device is the DVD, which stands for Digital Disc.