1. Material

Substrate

Polycarbonate

Recording layer

Azo dye

Reflective layer

Silver alloy

Adhesive layer

UV-set resin

2. Format

Storage capacity

4.7 GB

Recording time

SP: 2 Hrs LP: 6 Hrs

Recording linear velocity

1X :3.49 m/s 2X :6.98m/s

Recording wavelength

650-660 nm

3. Environment Requirement

Recording Temperature

-5~+55?

Recording Humidity

5~95 % RH

Playback Temperature

-40~+70?

Playback Humidity

5~95 % RH

4. Mechanical parameters

Outer diameter

120 ± 0.3 mm

Maximum rotation run-out of outer edge

0.30 mm max. (peak to peak)

Thickness of a disc

1.20 + 0.30 or 1.20- 0.06 mm

Thickness of a disc in clamping area

1.20 + 0.20 or 1.20- 0.10 mm

Mass of a disc

13.0~20.0 g

5. Optical parameters

Thickness of a transparent substrate

0.6 ± 0.03 mm (n=1.56)

Limits for angular deviation on the reflective beam

a) radial deviation

± 0.80°

b) Tangential deviation

± 0.30°

Birefringence of transparent substrate

100nm max.

Reflectivity

45 to 85 % (PUH with PBS)

6. Recorded parameters

Starting diameter of the Lead-in area

45.2 mm max.

Starting diameter of data area

48.0 + 0.0 or 48.0- 0.4 mm

Maximum diameter of Data area

116.0 mm

Track pitch

a) Average track pitch

0.74 ± 0.01µm

b) Maximum deviation of track pitch

0.74 ± 0.03µm

Radial run-out tracks below the rotational frequency determined by the scanning velocity

70µm (peak to peak)

7. Operational Signals (Before)

PPb signal amplitude

0.22 < PPb < 0.44

Radial Contrast

RC > 0.05

LPP BLER (before)

BLERb < 3%

8. Operational Signals (After)

Jitter

8.0 % max.

Modulated amplitude

I14 / I14H

0.6 min.

Signal asymmetry

-0.05 to 0.15

Track crossing signal

0.10 min.

Push Pull ratio

0.5 < PPr < 1.0

Aperture ratio

> 10 %

Block error ratio (after)

BLERa < 5%