Technical Specifications
CD-RW 74 1x-4x and CD-RW High Speed 4x-10x
Features
CD-RW 74 1x-4x CD-RW High Speed 4x-10x
Dimensions
Outer Diameter: 120 mm Outer Diameter: 120 mm
Inner Diameter: 15 mm
Inner Diameter: 15 mm
Thickness: 1,2 mm Thickness: 1,2 mm
Recording Capacity
650 MB
650 MB
CD-ROM Data = 74 min CD-ROM Data = 74 min
Linear Velocity: 2,4 m/s Linear Velocity: 4.8-12m/s
Track Pitch
1,60 ± 0,1µm 1,60 ± 0,1µm
Substrate
Polycarbonate Polycarbonate
Recording Material
Phase-change
Phase-change
Track Eccentricity
< 70µm < 70µm
Tilt
< 0,4°
< 0,4°
CNR (wobble)
>26 dB >26 dB
Radial Contrast
0.3 - 0.6 0.3 - 0.6
Reflectivity and double 0.15 < Rtop < 0.25 0.15 < Rtop < 0.25
pass substrate Transmission
I
11 /
I
top
0,55 < m < 0.70 0,55 < m < 0.70
I
3 /
I
11
0.45 – 0.6 0.45 – 0.6
Jitter (measured at 1x)
< 35ns
< 35ns
Max.Variation of
I
11/
I
top
± 10% ± 10%
Optimum Write Power
8 - 14 mW ( at 785nm, NA: 0.5)
≥
15mW
≤
24 mW(at 785nm, NA: 0.5)
Read Stability > 10
6
x
> 10
6
x
Overwrite Cyclability > 1000 x > 1000 x
Operating Environment 10° ~ 40°C -5°- 55°C
in drive
10% ~ 80% RH
5% ~ 95% RH
Expected Lifetime
Min. 70 Years Min. 70 Years
http://www.philips.de/prm
