TDK Corp. has develop a paradigm Blu - beam Disc that can store doubly as much data , and record it at twice the pep pill , as existing Blu - ray Discs .
The disc , unveiled at a TDK expo in Tokyo this week , can put down data point at 72Mbps ( minute per second ) , double the 36Mbps pace for current Blu - ray Discs . TDK increased the write speed by using a more powerful optical maser and make some changes to the material of the disc ’s recording layer , tell Nobuyuki Koike a spokesman for TDK .
The first generation of Blu - ray magnetic disc can already record data quicker than it is carry in high - definition TV broadcasts , so the faster transcription speed is n’t needed there . But it will be advantageous when subject is copy from a concentrated - record driving to an optical disk for backup man or archiving , said Koike .
The Blu - ray Disc Association , which is creditworthy for the disc data formatting , standardized a 2X translation of the read - only BD - R disk and rewritable BD - RE disc in the latter half of 2004 , said Taro Takamine , a spokesman for Sony Corp. in Tokyo . Sony is one of the major backers of the formatting .
To achieve the high capacity , TDK added two additional recording layers to the record to take it up to four layers . Blu - ray Disc stores 25 GB on each recording layer and the standard currently include unmarried level and dual layer versions .
No measure survive for four - layer discs and Koike said TDK is declare oneself its image to the Blu - ray Disc Association . Sony ’s Takamine articulate the current format route map call for four - bed disc to debut in the market during 2007 .
TDK ’s maturation come hot on the hound of an announcement by Toshiba Corp. that it has developed a three - layer HD - DVD disc open of holding up to 45 G of selective information . HD - DVD is a competing format to Blu - shaft Disc and HD - DVD ’s maximal capacitance of 30 GB had been viewed unfavourably against Blu - ray Disc ’s maximal 50 GB capacity .
According to the Blu - ray Disc Association , a individual - bed 25 GB disc can typically hold 135 minutes of eminent - definition video in MPEG-2 format , with room for a further two hr of received - definition video .
The recent Toshiba announcement institute the formats much nigher together and made capacity less of an issue for the Blu - ray Disc camp to trumpet when promote their engineering science . The ontogenesis of a 100 GB disc by TDK will likely open up this boulevard for the Blu - irradiation Disc supporters again .
