Video disks ditch binary storage
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Why count in binary when you can use hundreds of different digits at once? That&#39;s the principle that has allowed British physicists to develop a video disk that stores far more data than has ever been possible before.
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Aiming for a terabyte The University of Berlin, with partners Budapest University of Technology and Economics and Universita Politecnica delle Marche in Italy, has managed to work out how to store 500GB of data on a regular HD DVD or Blu-ray disc.â¦
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And it's mobile friendly Mobile World Congress It's based on blue-laser technology, but that's where the similarity between the V Media disc and both HD DVD and Blu-ray Disc ends. V Media holds just 1GB of data on a disc with a diameter of about an inch and a half and a casing reminiscent of Iomega's ill-fated Clik.â¦
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Now shows can be recorded without anything physical to record them on. The same goes for music. The days of tape-cassette&#39;s are long-gone, but CDs could be on their way out, too.
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The 0.85-inch diameter drive is a candidate for cell phone storage, but can the product compete against flash memory?
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Toshiba has abandoned the HD DVD high-definition video disc format, it announced Tuesday. (More to fol...
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British researchers have developed a scheme to store as much as a terabyte of data on a single video disk -- equivalent to 472 hours of video.
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No flowers, please (Almost) Forgotten Tech Toshiba's decision to end its production of HD DVD players and recorders effectively marks the death of the optical disc format once touted as the natural successor to the phenomenally popular DVD.â¦
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Apple executives at WWDC said that Mac OS X Leopard will not use Sun's ZFS 128-bit file system, contrary to reports that surfaced last week. Apparently, somebody forgot to tell Sun CEO Jonathan Schwartz, who told a conference that Apple would announce the switch Monday.
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Partitioning an array and/or a storage network may not be enough to satisfy air-gap sensitive users.
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With the price of disk storage plummeting, the storage capacity administrators find themselves managing is set to explode. But, the simple introduction of network block virtualization permits the use of underutilized storage management technologies such as mirroring, snapshots and replication on a much broader scale.
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Forget tape or discs; these models use the type of flash memory found in digital cameras.
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Now that digital cameras have overtaken film cameras in sales, users are beginning to encounter a familiar problem -- what to do with the bulging image files and folders filling up computer hard drives?
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Toshiba and Memory-Tech announced they developed a dual-layer DVD disc. This wouldn&#39;t be newsworthy unless the disc is able to contain two formats: HD DVD and DVD formats.
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(InfoWorld) - It's an interesting contrast: consumers are fast ditching videotape for DVDs and hard disks, but the people who make TV shows are sticking to tape for some cutting edge applications. When it comes to recording broadcast-quality HDTV, today's optical disc systems just can't spin fast enough to keep up with the video -- but that may be about to change. Current optical disc systems are speed-capped at about 10,000 rpm (revolutions per minute.) Spin them any faster and there's a danger the discs will physically disintegrate in the drive leaving nothing but a pile of sharp plastic splinters and data that is gone forever. And even if they don't break apart the disc can begin to wobble making reliable recording a problem. Engineers at the Science and Technical Research Laboratories (STRL) of Japan's public broadcaster, NHK (Nippon Hoso Kyokai), are working on an optical disc recording system based on consumer Blu-ray Disc technology that can spin as fast as 15,000 rpm without these problems and demonstrated it last week. It's needed because broadcast quality HDTV signals of the type NHK records stream at 250MbpsÂ making a fast-spinning optical disc a necessity. A 1X Blu-ray Disc records at 36Mbps so the new system is equivalent to 7X speed. NHK has gotten around the stress problem by making a flexible disc that is just 0.1 millimeters thick. The disc, which was co-developed with Ricoh, is essentially the recording layer from a Blu-ray Disc without the 1.1 millimeter plastic substrate that is used to give the disc rigidity. It won't break apart at higher speeds but is not rigid enough to be useful in a drive at any speed. To solve this second problem a thick stabilizing plate has been added into the drive. When spun, the disc is kept steady by the stabilizer and can be used up to 15,000 rpm, said Daiichi Koide, an engineer at NHK STRL. The set-up is similar to Hitachi Maxell's Stacked Volumetric Optical Disc (SVOD) that wasÂ introduced in prototype formÂ at last year's Ceatec exhibition in Japan and shown again at Cebit in Germany this year. SVOD packs several 0.1 millimeter thick optical discs into a cartridge and holds them against a stabilizer in the drive to keep them steady while in use. However there is a key difference between the two, said Koide. In the NHK drive the stabilizer doesn't rotate. If it did it would be susceptible to the same stresses that as the discs. The result is that NHK can spin the disc up to 15,000 rpm without any mechanical problems. The system is still under development and there's no word on when it will literally be ready for prime time. NHK envisages cartridges stuffed with a number of the thin discs that can replace videotapes. Â
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SAS, iSCSI and even InfiniBand offer alternative ways to connect servers to storage and are starting to steal some of Fibre Channel's thunder. But while they are, respectively, cheaper and faster than Fibre Channel for direct-attached storage, that doesn't mean the technology is doomed.
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Rewriteable version of the next-gen DVD format moves closer to mass production.