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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:

  • Windows 95 and Windows 3.1 are registered trademarks of Microsoft Corporation.
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    WRITTEN BY Secretary's Office
    All Rights Reserved, Copyright (C) 1997, Hitachi, Ltd.