DDS DATA CARTRIDGE
DDS DATA CARTRIDGE
DDS4 delivers 40GB (compressed)
storage in a tiny standard tape cartridge.
DDS lineup - Sony ® technology makes it possible
A single tiny DDS4 cartridge (DGD150P) holds a massive 20GB of uncompressed data. Key to such
high-density storage is Sony’s helical scan technology, originally developed for video applications.
Outstanding durability and tape travel stability
Sony’s highly durable HCL (High Cross Linkage) binder raises reliability and durability to withstand the
stress of repeated use. In addition, Sony’s RDP mechanism sandwiches the tape between textured
sheets to support smooth tape winding. The cartridge lid is made of strong plastic to protect the tape
against accidental drops or mechanical shock.
DDS DATA CARTRIDGE
Unique low torque cartridge
As tape winds onto a reel, torque rises along with diameter. To minimize this torque
effect in fast-forward and rewind search modes, Sony uses special designs for the
DDS hubs, lower sheet, and lower shell. The shell also improves overall cartridge
strength to minimize potential deformation under external stress.
DDS-4 Cartridge
Thin dual-layer coating technology
Sony DDS3 and DDS4 tapes use a dual-layer coating comprising an
ultra-thin magnetic layer and a nonmagnetic layer. The ultra-thin magnetic
layer provides high output even in the high frequency range essential for
high-density recording. The nonmagnetic layer creates a smooth surface
to support tape travel stability and durability.
Ultra-fine magnetic particles
Although smaller magnetic particles are more difficult to disperse
within the binder, Sony’s high dispersion technology achieves outstanding
results even with ultra-fine particles. The magnetic particles for DDS3 and
DDS4 tapes are approximately 0.1µm (100nm), but the output value for
the shortest recorded wavelength is 5dB or higher than that of DDS2.
Cleaning cartridge
Sony developed the DGD15CL cleaning cartridge to provide ideal results
for all DDS drives. While maximizing cleaning effectiveness, it minimizes adverse
effects such as head wear. It can be used about 50 times (depending on the drive).
DGD15CL Cleaning
Cartridge
Mechanical Characteristics
Format
Magnetic Material
Base Material
Recording Density
Recording Capacity
Residual Magnetic Flux Density
DG60P
DG90P
DGD120P
DGD125P
DGD150P
DDS1
DDS1
DDS2
DDS3
DDS4
Metal HDA
Metal HDA
HESA
MP++
MP+++
PET
PET
Aramid
Aramid
Aramid
61 kbpi(3 kftpmm) 61 kbpi(3 kftpmm) 61 kbpi(3 kftpmm) 122 kbpi(6 kftpmm) 122 kbpi(6 kftpmm)
1.3GB(*2.6GB)
2.0GB(*4.0GB)
4.0GB(*8.0GB)
12.0GB(*24.0GB)
20.0GB(*40.0GB)
250 mT
250 mT
295 mT
390 mT
400 mT
121 kA/m
121 kA/m
130 kA/m
190 kA/m
195 kA/m
Tape Width (mm)
3.81
3.81
3.81
3.81
3.81
Tape Thickness (µm)
13.0
9.0
6.8
6.8
5.6
60
91
120
125
150
Coercive Force
Tape Length (m)
*Compression ratio 2:1.
Dimensions & Weight
Environmental Requirements
Cartridge Dimensions (mm) : 73 x 54 x 10.5
Operation Conditions (°F(°C);%RH) : 59~131 (15~55);10~80*
Weight (g) : 44 (with case)
Storage Conditions (°F(°C);%RH) : 41~89.6 (5~32);20~60*
Transportation Conditions (°F(°C);%RH) : -40~113 (-40~45);5~80*
*Maximum wet bulb temperature : 79ºF(26ºC) at no condensation.
For more information, visit our website at sony.com/storagemedia
©2008 Sony Electronics Inc. All rights reserved. Reproduction in whole or in part without written permission is prohibited. Features and specifications are subject
to change without notice. Sony and the DDS, DDS2, DDS3, and DDS4 logos are trademarks of Sony. All other trademarks are property of their respective owners.
Printed 3/08
DM636
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