The Blu-ray technology is specially designed to meet the demands of high-definition. More data can be stored in a Blu-ray disc than in any other form of data storage media. It offers a tremendously high data transfer rate, and easily exceeds the storage capability of 5 standard DVDs. Data stored is resistant to corruption and deterioration over time, To increase its reliability, each disc contains a hard coating to prevent against scratches and dust. Welcome to the world of high-definition.