The Blu-ray Disc
Providing for an age of High Definition.
The Blu-ray disc (BD) is one of the newest discs on the market boasting full 1080p image resolution and up to 7.1 surround sound audio channels. It has been developed as High Definition televisions and recorders become more mainstream, allowing no compromise on the HD quality from the data on disc. On each layer of a Blu-ray disc you are able to store a massive 25GB. DVDs max out at 4.7GB. As with DVD discs the Blu-ray is able to be simply recordable or re-writable. As we have seen before the the DVD +/- format war, the Blu-ray disc has a rival - the HD DVD format.
At the high definition video setting, up to 9 hours can be recorded onto a dual-layer 50GB Blu-ray disc or 23 hours on standard definition. Whilst the Blu-ray disc development has been finalized, technology research firms continue to push the boundaries. A quad-layer disc holding 100GB has already been piloted. This shows the potential and scope of this new HD recording technology. The Sony Playstation 3 (PS3) is one of the first games consoles to feature a Blu-ray (read only) disc drive.