Husker godt første gangen jeg hørte om cd recorder. Det var før cd var vanlig. Den kostet 80 000 kr. Dette var på midten av 80 tallet. Prisene har falt "litt" siden den gang................
Det samme skjer jo med alle formater og bare raskere og raskere. Så pris nå og når det evt blir aktuelt for forbrukermarkedet har liten sammenheng tror jeg.
Viser resultater 21 til 23 av 23
08-06-2006, 21:34 #21
08-09-2006, 18:48 #22
Snakket for en tid siden med en kinomaskinist som hadde vært på kurs om Digital kino. De var blitt fortalt at de etter hvert ville få filmene levert på en ny type DVD liknende plate som ikke ville være tilgjenglig for vanlig folk.
Selvfølgelig var han av den "gamle garde" og hadde verken fått med seg navnet på platen/systemet eller hvordan det fungerte.
Noe må de jo finne på som gjør Digital kino driftsikkert og praktisk. Å streame en film tar vel en uke. Harddisk løsningen er lite sikker mot kopiering og sletting. Noe av det som kommer av løsninger for Digital kino vil finne veien til konsumermarkedet.
Men med den lite overbevisende utsettelse/lanseringen av HD/BR så ser det jo ut til å kunne ta sin tid.
"Hvis de da ikke har et nærmest ferdig produkt som er mye smartere og bedre og fungerer letter"; sa han med håp i stemmen.:-D
Her er en detaljert teknisk artikkel om hvordan det virker med flere linker i slutten av artikkelen.
How Holographic Versatile Discs Work
by Julia Layton
How HVD Compares
While HVD is attempting to revolutionize data storage, other discs are trying to improve upon current systems. Two such discs are Blu-ray and HD-DVD, deemed the next-generation of digital storage. Both build upon current DVD technology to increase storage capacity. All three of these technologies are aiming for the high-definition video market, where speed and capacity count.
So how does HVD stack up?Blu-ray HD-DVD HVD
Initial cost for recordable disc
Approx. $18 Approx. $10 Approx. $120
Initial cost for recorder/playerApprox. $2,000 Approx. $2,000 Approx.$3,000
Initial storage capacity54 GB 30 GB 300 GB
36.5 Mbps 36.5 Mbps 1 Gbps
Because HVD is still in the late stages of development, nothing is written in stone; but you've probably noticed that the projected introductory price for an HVD is a bit steep. An initial price of about $120 per disc will probably be a big obstacle to consumers. However, this price might not be so insurmountable to businesses, which are HVD developers' initial target audience. Optware and its competitors will market HVD's storage capacity and transfer speed as ideal for archival applications, with commercial systems available as soon as late 2006. Consumer devices could hit the market around 2010.
08-09-2006, 22:06 #23
Etter å ha blitt imponert av HVD så er det morsomt å kikke på hva annet som forgår i verden av systemer som kan pensjonere HD/BR.
Suddenly, all sorts of small companies are crawling out into the sunlight to tout alternative optical media technologies that will support HD content without the need to move from the current red-laser technology to tomorrow's blue-wavelength lasers.
Først ut er VCDHD:
In one corner is a consortium of well-known names such as Sprout CD (Ukraine), Antrop Studios (Russia) and VDL ODMS (the Netherlands), Engadget reports.
They're shouting about their VCDHD (Versatile Compact Disc High Density) system, which stores 4.7GB on a single-sided disc that's allegedly half the thickness of a DVD.
Only a cynic would suggest that's because DVDs have two layers...
VCDHD is also claimed to be less error-prone and more robust than DVD, despite being thinner, which may also explain why they can be punched out in at least a third of the time, the companies claim. The yield is also way higher, allegedly.
Etter å ha blitt imponert av VCDHD’s 4.7GB er det PH-DVD’s tur.
Next we have PH-DVD, developed by a company called Polarizonics. This time, the trick is to increase the capacity of blue-laser discs and read-speed threefold by using different light polarisations - a feature it claims is already present in blue-laser systems but goes unused.
We wonder why Sony, Toshiba and co missed it...
PH-DVDs, Polarizonics claims, can be made using existing HD DVD and Blu-ray Disc plants.
Both formats have emerged even as the consumer electronics industry is gearing up to launch the two better known next-generation optical disc formats. But there are other, already announced alternatives.
Kina vil jo helst ikke betale lisenspenger til HD/BR så de lager sitt eget system; EVD
Work is progressing on China's EVD (Enhanced Versatile Disc), the format that is expected to offer HD content on a DVD-like red-laser disc. In December 2005, EVD's developer, Beijing-based E-World said it would work with London-based New Medium Enterprises (NME) to merge EVD with NME's VMD (Versatile Multi-layer Disc), a red-laser system offering 50GB of storage capacity on ten
5GB data layers, though it can go up to 200GB, according to NME.
Just as E-World is hoping to bring cheap HD content to the mass Chinese market, NME has its eye on the Indian sub-continent and all those hugely popular Bollywood extravaganzas.
The two companies are now one, called NME-World. VMD will ship in Q3, its developers claim.
Versatile Multilayer Disc (VMD), will launch in the US later this year with the release of more than 100 titles, the company behind the technology pledged today. To indicate the VMD's support among the major Hollywood studios, New Media Enterprises (NME) said the launch titles will include... er... "several Broadway shows".
Well, exactly. Not quite in the same league as Blu-ray Disc or HD DVD, is it? VMD's technical propostion may be impressive - a 50GB disc containing ten layers each capable of holding 5GB of data to be read using red laser technology - but without a very good content proposition, the format will have a tough time establishing itself in the States, let alone delivering solid market success.
Still, that's where NME has set its sights. "The US is no doubt our biggest market," said NME CEO Mahesh Jayanarayan today, despite early suggestions that the company would be focusing on emerging HD markets such as the Indian sub-continent, home of Bollywood and an audience with an almost insatiable desire for movies.
To target the US market, NME also said today it has appointed one Jeff Burrow, formally a senior sales and marketing executive with DirecTV. Burrow will oversee NME's soon-to-be-opened Dallas office, from which the company will seek out content deals, and market VMD media and players.
NME will have to be quick if it's to survive the promotional tsunami the consumer electronics giants and major content companies are going to drive this coming Holiday season. It may be able to pitch VMD as a cheaper HD alternative but, again, cost doesn't matter a hill of beans if the content isn't there.
VMD hørtes ikke så dumt ut. Billige spillere, $150.- har jeg hørt rykter om, og antagelighvis noen Hollywood blockbustere sammen med tusener av Bollywoodfilmer. Kunne være morsomt å teste. Si fra hvis noen finner en slik spiller!
Over til Taiwan.
Hva skal man med HDDVD når man kan få hele 135min. med 1080p på en disk, holder nesten til en kort spillefilm.
Finally, there's Taiwan's FVD (Forward Versatile Disc) A single-layer FVD can hold 5.4GB to 6GB of video content or data, rising to 9.8-11GB for a single-sided, double-layer disc. That's sufficient for 135 minutes of 1920 x 1080i HD content, the format's backers claim.
FVD went on sale in November 2005, around the time EVD began to come to market. Both seek to avoid the licensing fees the DVD, HD DVD and BD owners require Asian manufacturers pay to use their technology.
Holo, world !
But let's not forget the rogue element: the companies pursuing holographics storage. Lucent off-shoot InPhase is touting its Tapestry holographic system, which is expected to debut later this year offering 300GBof storage on a DVD-sized disc. The data can be read at a staggering 20MBps. InPhase reckons it can get that up to 23MBps and the storage capacity to 1600GB (1.6TB). Maxell has licensed the technology to bring it to market.
Etter å ha blunket litt etter 1.6TB så er vi tilbake på mer familiære tomter med HVD.
Meanwhile, Japan's Optware, backed by Fuji Photo and others, is pushing HVD (Holographic Versatile Disc), a DVD-sized disc (again) that holds 1TB and can transfer data at a rate of 1Gbps, 40 times the speed of DVD, according to the developer. It's working to define HVD as a standard, though with a more modest capacity of 100GB for ROMs and 200GB for cartridge-enclosed HVD-RW products.
It's impossible to say how many of these will ever make it to the mainstream. The holographic systems have the potential to make a lot of noise in the enterprise storage market before maturing sufficiently - ie. becoming cheaper - to provide the foundation for the post-BD/HD DVD era, though there's a limit on how high a home video's resolution needs to be, which in turn sets a limit on the maximum necessary storage for a consumer medium.
As for the other, red-laser based systems, there's certainly market niches they can address, but whether they'll be able to shout above the noise the consumer electronics and content industries are going to be making about the BD and HD DVD formats seems unlikely. Not without some strong industry voices on their side, at any rate.
Som en avslutning på denne seansen er det passende å høre litt om organisk DVD basert på genetisk modefisert bakteria.
DVDs may eventually become organic, replacing dyes with light-sensitive proteins in order to boost their storage capacity to 50TB - the equivalent of 1,000 dual-layer Blu-ray Discs. It also gives them potentially the same high-speed read and write access as hard drives.
The concept was described by Harvard Medical School boffin Professor V Renugopalakrishnan revealing how he created a layer of protein made by genetically modified bacteria. The protein is light-senstive, changing its structure when illuminated with light.
Unfortunately, the change last only for a few hours, so Renugopalakrishnan and his team adjusted the Halobacterium Salinarum bacteria's DNA so they produce proteins capable of retaining their changed state for years.
Renugopalakrishnan reckons that by spreading the protein on a DVD or any flat medium. The size of the molecules means that whatever the size of the device, the data density is massive. He also suggested the system could eventually be used to replace hard drives, though it's unclear whether the protien repsonds to light fast enough to operate as an alternative to magnetic storage.
USB Flesh Disk, anyone?
Kredit til Tony Smith på reg hardware for teksten til disse artiklene.
Fra artikler 31st March 2006 & 12th July 2006. ®