Blu-ray

Blu-ray is the latest generation of optical disc format using the same 120mm form factor as CD and DVD. BD is designed for the delivery of high-definition video to the consumer marketplace, and for the delivery of high-density data storage to the commercial marketplace.  Storage capacities of Blu-ray media started at 25GB per disc (single-layer) with 50GB per disc (dual-layer) now readily available. The next generation is 100GB per disc again on a single-sided medium.