Digital Versatile Discs, commonly known as DVDs, are optical storage media used to store digital data. They can hold a significant amount of information, typically around 4.7 GB for single-layer discs and up to 8.5 GB for dual-layer discs. DVDs are widely used for distributing movies, software, and video games due to their high capacity and compatibility with various players. DVDs are similar in appearance to compact discs but offer greater storage capabilities. They utilize a laser to read and write data, allowing for high-quality video and audio playback. As technology has advanced, Blu-ray discs have emerged as a higher-capacity alternative, but DVDs remain popular for many applications.