What is DVD and Blu-ray technology can be classified as what storage?

DVD and Blu-ray technology are classified as optical storage media. They use laser technology to read and write data on discs, allowing for the storage of large amounts of digital information, such as movies and software. DVDs typically store up to 8.5 GB, while Blu-ray discs can hold up to 25 GB for single-layer and 50 GB for dual-layer formats. This technology is widely used for video playback and data distribution.