ultra-DVD stores 10,000 GB of data

A DVD that can store up to 2,000 films could usher in an age of 3D TV and ultra-high definition viewing, scientists say. The ultra-DVD is the same size and thickness as a conventional disc, but uses nano-technology to store vast amounts of information.

Scientists believe it could be on sale. One disc could back up the memory of a computer or record thousands of hours of film.

The breakthrough comes from Swinburne University of Technology, Melbourne, Australia, where scientists created a prototype using 'nano rods' - tiny particles of gold too small to see - and polarised light, in which the light waves only flow in one direction.

Professor Min Gu, whose findings appear in the journal Nature, said: 'We were able to show how nano-structured material can be incorporated on to a disc to increase data capacity without increasing the size of the disc.'

A DVD can hold up to 8.5 gigabytes of information, enough for a movie, several special features and an alternative soundtrack.

Blu-ray discs, which were designed to replace them, can store 50GB, enough for a film and extra features in high definition.

But ultra-DVDs will be able to store ten terabytes - or 10,000GB.

A conventional DVD records music, pictures and computer files as digital code - a series of ones and zeroes. The code is written as a series of pits under the clear surface of the disc and is read by a DVD player's laser.

The technology could help usher in an age of 3D TV or ultra-high definition.

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Tiny Storage device

Seagate announced nine new products on the eve of its annual analyst meeting, scheduled to take place later this week.

Seagate's DAVE 3.5 x 4.7 x .47-inch form factor into which you can cram 20GB ~ 60GB and cost less than $200 (digital audio video experience) platform, for instance, is geared toward people who want to use their phone as an MP3 player, movie player or video recorder.

The unit, which contains a 60GB 1.8-inch drive, can connect to a phone via Wi-Fi, Bluetooth or a USB cable, and it can fit inside a coat pocket. Most phones come with a few gigabytes of capacity, at best, so a DAVE would significantly increase the amount of remote storage.

Some companies are also testing out the DAVE as a vehicle for renting movies. In this scenario, customers would walk up to a kiosk and select the movies they wanted. The kiosk would then beam them into the DAVE unit. The movies would contain copyright protection to prevent piracy, Watkins added.

In a twist, Seagate doesn't plan to market the DAVE as a product under its own name. Instead, it will make the DAVE for cellular companies and let them brand it.

At the other end of the Seagate spectrum is a drive optimized for security cameras. The drive, which offers up to 1 terabyte of storage, contains firmware that enables it to accept video streams from several sources.

The product launch also included a 1-terabyte desktop drive, a 250GB notebook drive, and backup drives from the Maxtor line. Seagate acquired Maxtor last year and continues to use the brand for its "value" (i.e. cheaper and less fancy) line of products.

The desktop Maxtor backup drives sport up to 750GB of storage space and cost about $270 each. In 2004, Sony showed off a 1-terabyte home server in Japan that cost about $5,000, so the price of storage continues to plummet.

Seagate also announced new drives for the first quarter of 2008, with enhanced error correction for digital-video recorders, including a 1TB model. In Japan, consumers are already asking for 2TB drives for their DVRs.

Seagate has also said it plans to move into the market for flash-based hard drives. The company now sells only hard drives that store data on magnetic platters.

Samsung Electronics and SanDisk have already released flash drives for notebooks and blade servers. By coming out with its own flash drives, Seagate can participate in what Watkins claims will be a corner of the storage market.

Flash memory is more reliable and consumes less energy, but it costs more, in terms of cents per gigabyte.
source: cnet