A Blu-ray drive is a type of optical disc drive that reads and writes data to Blu-ray discs. These drives are designed to store high-definition video and audio, making them popular for watching movies and playing video games. They can also read standard DVDs and CDs, providing versatility for users. Blu-ray drives use a blue-violet laser, which has a shorter wavelength than the red laser used in DVD drives. This allows for more data to be stored on a single disc, typically up to 25 GB for single-layer discs and 50 GB for dual-layer discs.