Blu-ray, also known as Blu-ray Disc (BD), is the name of a next-generation optical disc format jointly developed by the Blu-ray Disc Association (BDA).he format was developed to enable recording, rewriting and playback of high-definition video (
HD), as well as storing large amounts of data.Movies in High Definition is the key with Blue Ray. If picture quality matters to you then go with blue ray vs. a standard dvd
