One terabyte hard drives coming soon from Hitachi

Hitachi Global Storage Technologies has announced it will come out with a 3.5-inch-diameter 1 terabyte hard drive for desktops in the first quarter of 2007. The company will then follow up in the second quarter with 3.5-inch terabyte drives for digital video recorders, bundled with software called Audio-Visual Storage Manager for easier retrieval of data, and corporate storage systems.

The Deskstar 7K1000 will cost $399 when it comes out - which equates to about 40 cents per gigabyte. Hitachi will also come out with a similar 750GB drive. Rival Seagate Technology will come out with a 1 terabyte drive in the first half of 2007. The two companies, along with others, will tout their new drives at the upcoming Consumer Electronics Show in Las Vegas, and will show off hybrid hard drives, as well.

A terabyte is a trillion bytes, or a million megabytes, or 1,000 gigabytes, as measured by the hard-drive industry. (There are actually two conventions for calculating megabytes but this is how the drive industry counts it.) As a reference, the print collection in the US Library of Congress comes to about 10 terabytes of information, according to the How Much Information study from UC Berkeley. The report also found that 400,000 terabytes of email get produced per year. About 50,000 trees would be necessary to create enough paper to hold a terabyte of information, according to the report.

Who needs this sort of storage capacity? You will, eventually, said Doug Pickford, director of market and product strategy at Hitachi. Demand for data storage capacity at corporations continues to grow, and it shows no sign of abating. A single terabyte drive takes up less space than four 250GB drives, which lets IT managers conserve on computing room real estate. The drive can hold about 330,000 3MB photos or 250,000 MP3s, according to Hitachi's maths.

Consumers, meanwhile, are gobbling up more drive capacity because of content such as video. An hour of standard video takes up about 1GB, while an hour of high-definition video sucks up 4GB, Pickford said.

The boost in capacity for desktop drives comes in part through the introduction of perpendicular recording technology to 3.5-inch-diameter drives. In perpendicular drives, data can be stored in vertical columns, rather than on a single plane. Drive makers have already released laptop drives, which sport smaller 2.5-inch-diameter drives, with perpendicular recording. The 1 terabyte drives will be Hitachi's first 3.5-inch drives with perpendicular recording.

Currently, Hitachi sells 3.5-inch drives that hold 500GB of data, while Seagate has come out with a 750GB data drive.

Michael Kanellos writes for CNET News.com