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Technical Specification
DVD-RAM (Random Access Memory)
| PRODUCT |
SPECIFICATION |
| Product |
DVD-RAM |
| Outer diameter |
120.00mm+/-0.3mm |
| Inner diameter |
15.00mm+/-0.15/0.00mm |
| Thickness |
1.20mm+0.30mm/-0.06mm |
| Capacity |
2.6GB / 5.2 GB / 4.7GB |
| Type |
Data / Audio |
| Track pitch |
0.74µm (2.6GB/5.2GB)
0.74/0.615µm (4.7GB) |
| Recording Method |
Phase-Change |
| Radial Deviation |
+0.7º |
| Tangential Deviation |
+0.3º |
| Recording / Playback Wavelength |
650nm |
| Lens Numerical Aperture |
0.60 |
| Recording Bit Length |
0.41-0.43µm (2.6GB/5.2GB)
0.41-0.43µm/0.28-0.29µm (4.7GB) |
| Reflectivity |
15~25% |
| Track Format |
Wobbled Land and Groove |
| Modulation Code |
8/16, RLL (2,10) |
| User Data Per Sector |
2048 bytes |
| Error Correction Code |
Reed-Solomon Product Code |
| Sector Layout, Rational Control |
ZCLV |
| Defect Management |
Equipped |
| Rejection Ratio |
< 1% |
| Grade |
A |
* The above specifications are according to DVD Specifications
for Random Access
Memory Ver. 1.0 (DVD-RAM)
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