James Delahunty
23 Feb 2007 14:57
Nichia Corp. of Japan has broken the speed record for writing to a recordable Blu-ray Disc. The company has announced a new blue laser diode that is capable of writing a double-layer Blu-ray disc at up to 10X speed. Compare that with the currently available Blu-ray and HD DVD burners that offer 2X and 4X write speeds.
Nichia's new blue-violet semiconductor laser diodes can reportedly operate at 320 mW (milliwatts), compared to blue laser devices currently available today that operate in the range of 20mW. "Writing speed is totally dictated by the output power," Steven DenBaars, professor of materials and co-director of the Solid-State Lighting Center at the University of California Santa Barbara, said. "The more power you have, the faster you can spin the disk."
He said a 2X devices can sustain a write speed of about 8.99 Mbps, whereas a device capable of 10X can write at 44.9 Mbps. Burning a full disc at 2X can take up to 50 minutes, whereas, 10X speed will cut that time down to around 10 minutes.
Source:
DailyTech