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March 3, 1997
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
Product Model Sample Price Shipping DVD-ROM drive GD-2000 90,000 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 time DVD-ROM: Av. 150 ms CD-ROM: Av. 100 ms Drive speed DVD-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 memory DVD-ROM: 512 kbytes CD-ROM: 256 kbytes (2) Compatible formats DVD-ROM CD-ROM CD-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 interface Enhanced IDE (ATAPI) (4) Environment Temperature Operating 5 to 45 C Non-operating -30 to 60 C Relative humidity Operating 15% to 85%
(no condensation)Non-operating 10% to 90%
(no condensation)(5) Reliability MTBF 100,000 hours Non-recoverable error rate 10-12 (6) Others Dimension (W x D x H) 146 x 190 x 41.3 mm
(excluding front panel)Weight Approx. 1.0 kg Note:
Windows 95 and Windows 3.1 are registered trademarks of Microsoft Corporation.