
DVDs
DVDs (Digital Versatile Discs) are thin, round discs used to store digital data such as movies, music, or software. They use a laser to read the information encoded on their surface, which is organized in tiny pits and lands. DVDs typically have a capacity of 4.7 GB for single-layer discs or up to 8.5 GB for dual-layer discs, allowing high-quality video and audio storage. They are widely used for distributing entertainment content and backups due to their durability and relatively low cost. DVDs require a compatible player or drive to access and display their stored content.