Blu-ray disc

A Blu-ray disc (BD), sometimes called "Blu-ray," is an optical disc storage medium designed to supersede the standard DVD format. Its main uses are for storing high-definition video, PlayStation 3 video games, and other data, with up to 25 GB per single layered disc, and 50 GB per dual layered disc. The disc has the same physical dimensions as standard DVDs and CDs.