Nichia Corporation of Japan has announced a new blue-violet laser that can fill up a 54GB double-layer disc at more than 10X record speed, compared to typical 2x and 4x Blu-ray/HD-DVD format disc recorders. In other words, instead of a 50 minute write-time at 2x, the future holds a 10 minute write-time at 10x. According to blue laser expert Steven DenBaars, the key to faster write times lies in the power of the laser. Faster burn times allow the disc to be rotated at a higher speed. A 2X device can sustain a write speed of only 8.99 Mbps, while a 10X laser disc recorder can achieve a writing velocity of 44.9 Mbps.
Nichia’s new blue-violet semiconductor laser diodes can reportedly operate at 320 mW (milliwatts), while the average current consumer grade blue laser devices are in the range of 20mW. “Writing speed is totally dictated by the output power. The more power you have, the faster you can spin the disk,” DenBaars said. The UCSB team, led by blue laser inventor and former Nichia researcher Shuji Nakamura, recently demonstrated the world's first nonpolar blue-violet laser diodes. The technology, which is still two to four years away, could eventually produce blue laser diodes that operate in the range of 500 mW.
News source: DailyTech
Nichia’s new blue-violet semiconductor laser diodes can reportedly operate at 320 mW (milliwatts), while the average current consumer grade blue laser devices are in the range of 20mW. “Writing speed is totally dictated by the output power. The more power you have, the faster you can spin the disk,” DenBaars said. The UCSB team, led by blue laser inventor and former Nichia researcher Shuji Nakamura, recently demonstrated the world's first nonpolar blue-violet laser diodes. The technology, which is still two to four years away, could eventually produce blue laser diodes that operate in the range of 500 mW.
News source: DailyTech
It's about both! Both Blu-Ray & HD-DVD use the same/similar blue laser diodes. This is about a higher powered blue-violet laser diode that can obviously speed things up. It would apply to & benefit the writing speed of both formats.
Huh? They use very similar laser technologies. This is something neither have yet, and that both would benefit from.
i wont be leaving standard dvd's anytime soon anyways.
Score yet another one in the "wannabe-journalist-assisted-by-MS-Word-thesaurus' list. What in the world is 'writing velocity'? Kids, when there is no other suitable alternative for a word/phrase, USE IT. Otherwise you end up looking stupid, like this specimen here.
I think he knew that...its just that 'speed' makes more sense than 'velocity'.
My DVD+-RW drive burns up to 16x. The media I bought a while back only supports 8x. I get quality burns at 4x.
More speed doesnt mean better or similar quality...it just means faster burn times. I bought one of those 52x CDRW's and I still only used it at 16x max to assure a quality burn. I find that burning at the max speed doesnt always produce quality burns.
Another brilliant title to accurately sum up the article.
So 45 GB can be written in 1024 seconds=17 minutes
But I guess it will take you 1024 minutes to understand what I just said.
Because 200Gb>>>60Gb (4 layer discs)
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