Blu-ray Disc Technical Specification
Below is the manufacturing specification for single and dual-layer Blu-ray disc (BD).
Parameters |
Specification |
|---|---|
| Format | Single layer ; Dual layer |
| Volume | 25 GB/50GB |
| Outer diameter/Thickness | 120±0.30 mm 0.1mm(bonding layer)+1.1mm(space layer) |
| Track Pitch | 0.32 um |
| Redial Deviation | ±0.80 degree(Normal environment test) ±0.70 degree(sudden change enviroment test) |
| Tangential Deviation | ±0.30 degree |
| Reflectivity | 35％～70％（single layer） 12％～28％（dual layer） |
| Thickness of bonding layer | 25 ± 5 um |
| Jitter | L0:6.5% L1 : 8.5% max |
| Wave length of laser diode | 405nm |
| Numerical Aperture | 0.85 |