Blu-ray Spec Approved

The Blu-ray Disc Association (BDA) has approved the first full version of its read-only disc specification, the organization said this week.

As the format name directly indicates, a newly developed blue laser diode has been adopted, providing a storage capacity of 25 GB on a single-layered disc or 50 GB on a dual-layered disc with a 12 cm diameter (same size as CD and DVD). The data transfer rate reaches 36 Mbps (bit per second).

Blu-ray has many potential uses in future hardware including HD-DVD and PC data storage. Sony has also discussed using Blu-ray in its next generation game player the PlayStation 3