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                      | HITACHI HOME | UP | SEARCH | HITACHI

                      News Release

                      March 3, 1997

                      Hitachi Ships Samples of Industry's First 2x DVD-ROM Drive

                      Hitachi, Ltd. today announced that it will start shipping samples of the industry's first double-speed DVD-ROM drive on March 21. The GD-2000 is an internal unit that features a data transfer rate of 2.76 Mbytes/s and an average access time of 150 ms. Another feature is a double-lenses, double-laser pickup system mechanism developed by Hitachi, in which a 650-nm red-light laser is used to read DVD discs and a 780-nm infrared laser is used to read CD-ROM and CD-R discs.

                      Pricing & Shipping Schedule in Japan
                      ProductModelSample PriceShipping
                      DVD-ROM driveGD-200090,000 yen March 21, 1997

                      Main Features:

                      1. Industry's first DVD-ROM drive
                      For a DVD-ROM drive, data transfer rate and access time are the two most important performance specification items. With its data transfer rate of 2.76 Mbytes/s and average access time of 150 ms, the GD-2000 is the first double-speed DVD-ROM drive.

                      2. Double-lenses, double-laser pickup system
                      The drive has a 650-nm red-light semiconductor laser for DVD-ROM read functions and a 780-nm infrared semiconductor laser for CD-ROM/CD-R read functions. These are combined with a high-speed actuator mechanism to provide high-speed playback of DVD-ROMs, CD-ROMs and CD-R discs.

                      3. Compatible with 20-speed CD-ROMs
                      By using a Constant Angular Velocity (CAV) drive mode the GD-2000 can function as a 20-speed CD-ROM drive. In this high-speed mode, it has a data transfer rate of 3 Mbytes/s and an access time of 100 ms.

                      4. Focus-Jump technology
                      Focus-Jump technology provides instantaneous switching between layers of double-layer discs.

                      5. ATAPI
                      PIO Mode 4 ATAPI interface compatibility gives the GD-2000 a maximum data transfer rate capability of 16.6 Mbytes/s.

                      6. Windows compatibility
                      The drive is fully compatible with the Windows 95 and Windows 3.1 operating system environments.

                      7. High dust-resistance
                      The dust-resistant structure for which Hitachi's CD-ROM drives are so well known has been further enhanced to provide even higher reliability.

                      GD-2000 DVD-ROM Drive Specifications
                      (1) Main Specifications
                      Transfer rate (kbytes/s )DVD-ROM:2,760
                      CD-ROM
                      (max. 20x speed):
                      1,290 to 3,000 (Mode 1)
                      1,470 to 3420 (Mode 2)
                      Burst-mode
                      (ATAPI PIO Mode 4):
                      16.6 Mbytes/s
                      Access timeDVD-ROM:Av. 150 ms
                      CD-ROM:Av. 100 ms
                      Drive speedDVD-ROM:Single-layer disc:
                      19.2 to 46.3 (1/s)
                      1,149 to 2,777 rpm)
                      Double-layer disc:
                      21.1 to 50.9 (1/s)
                      (1,264 to 3,056 rpm)
                      CD-ROM:77 (1/s) (CAV)
                      [4,600 rpm]
                      Buffer memoryDVD-ROM:512 kbytes
                      CD-ROM:256 kbytes
                      (2) Compatible formats
                      DVD-ROM
                      CD-ROMCD-ROM Mode 1
                      CD-ROM Mode 2
                      CD-ROM XA
                      CD-I
                      Audio CD
                      Data & Audio Mixed Mode
                      CD-Extra
                      CD-R, CD-RW
                      (3) Interface
                      Type of interfaceEnhanced IDE (ATAPI)
                      (4) Environment
                      TemperatureOperating5 to 45 C
                      Non-operating-30 to 60 C
                      Relative humidityOperating15% to 85%
                      (no condensation)
                      Non-operating10% to 90%
                      (no condensation)
                      (5) Reliability
                      MTBF100,000 hours
                      Non-recoverable error rate10-12
                      (6) Others
                      Dimension (W x D x H)146 x 190 x 41.3 mm
                      (excluding front panel)
                      WeightApprox. 1.0 kg

                      Note:

                    1. Windows 95 and Windows 3.1 are registered trademarks of Microsoft Corporation.
                    2. top of this page

                      WRITTEN BY Secretary's Office
                      All Rights Reserved, Copyright (C) 1997, Hitachi, Ltd.

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