Optical recording is a method of storing data using light-sensitive materials. This technology captures information by using lasers to etch patterns onto surfaces like CDs, DVDs, or Blu-ray discs. The patterns represent digital data, which can be read by a laser in a player, allowing users to access music, videos, or software. The process involves converting electrical signals into light signals, which are then used to create microscopic pits on the disc's surface. These pits and the flat areas between them correspond to binary data, enabling efficient storage and retrieval. Optical recording is widely used in various applications, including data archiving and media distribution.