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March 21, 2001
Fujitsu and Sony Expand GIGAMO Standard to 2.3GB
-- Significant Increase in 3.5-inch Magneto Optical Disk Drive Capacity --
Tokyo, March 21, 2001 -- Fujitsu Limited and Sony Corporation today
announced that they have enhanced the 3.5-inch magneto-optical (MO)
GIGAMO(1*) disk drive standard to accommodate an increase in memory
capacity from 1.3GB to 2.3GB. Fujitsu developed the new drive and Sony
worked to improve the media that comply with the new standard, and both
companies are now working to launch compatible products by fall 2001.
Fujitsu and Sony will exhibit prototype models of the enhanced GIGAMO
standard drive and media at CeBIT 2001, the world's largest IT trade
exhibition, which takes place in Hannover (Germany) March 22 - 28.
The new MO products are expected to help facilitate high-speed file
backup for commercial systems such as telephone switches and Automated
Teller Machines, and they will also be ideal for storing and working
with digital video and other large volumes of data. The new standard
is fully backward compatible, accommodating all MO media ranging from
128MB to 1.3GB. In addition, it supports the Media ID function (announced
in September 2000) for protection of copyrighted online digital content.
The newly developed 2.3GB GIGAMO standard requires minimal modifications
to the optical recording/playing head used in the current line of MO
drives. Higher-density recording has been made possible by using magnetically
induced super resolution (MSR *2) technology together with the land/groove
recording method (*3), resulting in increased recording capacity. Multiple
magnetic layers of the 2.3GB GIGAMO media have been optimally designed
to offer comparable storage reliability and playback/recording durability
to that of the existing MO systems.
The following manufacturers will support the new 2.3GB GIGAMO standard:
- Drive manufacturers: Olympus Optical Co., Ltd., Konica Corporation
- Media manufacturers: Teijin Limited, Hitachi Maxell, Ltd., Mitsubishi
Chemical Corporation, Ritek Corporation.
||540 & 640MB
||512 & 2048 Bytes
|*Bit length of MO area:
|2200 channel bits/mm
||2634 channel bits/mm
||3125 channel bits/mm
|6601 channel bits/mm
||5268 channel bits/mm
||3125 channel bits/mm
The 3.5-inch MO format standard for drives and media over 1GB in capacity,
which was jointly developed by Fujitsu and Sony. New 2.3GB standard
has now been introduced, in addition to existing 1.3GB standard. Both
2.3GB and 1.3GB standards are compatible with the ISO/IEC MO standard.
(*2) MSR (magnetically induced super resolution):
Magneto-optical recording technology has made it possible to achieve
high linear and tracking density, with minimal modifications to the
conventional optical head, as well as gigabyte-level storage volume.
MSR is not susceptible to optical factors affecting beam diameter during
playback. It utilizes temperature distribution and magnetism to make
a smaller effective beam spot than can be achieved through optical technology
alone. In addition, it can read and recognize marks recorded magnetically
on a sub-optical scale.
(*3) Land/groove recording:
A method in which the guiding grooves for tracking as well as the area
between the guiding grooves (land area) are used for the recording space,
resulting in higher density recording.
* All company/product names mentioned may be trademarks or registered
trademarks of their respective holders and are used for identification
[About Fujitsu Limited]
Fujitsu Limited (TSE: 6702) is a leading provider of Internet-based information technology solutions for the global marketplace. Comprising over 500 group companies and affiliates worldwide -- including ICL, Amdahl and DMR Consulting -- it had consolidated revenues of 5.26 trillion yen ($49.6 billion) in the fiscal year ended March 31, 2000. Fujitsu's pace-setting technologies, world-class computing and telecommunications platforms, and global corps of over 60,000 systems and services experts make it uniquely positioned to unleash the infinite possibilities of the Internet to help its customers succeed. Altogether, the Fujitsu Group has 188,000 employees and operations in over 100 countries.
[About Sony Corporation]
Sony is a leading manufacturer of audio, video, game, communications and information technology products for the consumer and professional markets. With its music, pictures, computer entertainment and on-line businesses, Sony is uniquely positioned to be a leading broadband entertainment company. Sony recorded consolidated annual sales of more than $63 billion for the fiscal year ended March 31, 2000.
Visit Sony on the Web at http://www.sony.net/