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Disc Specification; Disc Materials - LG GWA-4164B Service Manual

Dvd/cd rewritable drive
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2. Disc Specification

Media Type
User data capacity
Wavelength
Reflectivity
Track pitch
Minimum pit length
Modulation
Channel bit- rate
Wobble Frequency
Addressing
Read Power (mW)
Write Power (mW)
JItter

3. Disc Materials

1) DVD-ROM
<Single Layer >
<Dual Layer >
DVD-ROM
Single-Layer
Dual-Layer
Read Only
Read Only
4.7GB
8.54GB
650nm
650nm
45~85%
18~30nm
0.74
0.74
0.4
0.44
>0.6
>0.6
26.16MHz
26.16MHz
-
-
26.16MHz
26.16MHz
-
-
<8%
<8%
DVD-R
DVD-RW
Dye
Phase change
4.7GB
4.7GB
650nm
650nm
45~85%
18~30%
0.74
0.74
0.4
0.4
>0.6
>0.6
26.16MHz
26.16MHz
140KHz
140KHz
Wobble & LPP Wobble & LPP Wobble(ADIP) Wobble(ADIP)
<8%
<8%
Label
Polycarbonate
Bonding layer
Reflective layer
Polycarbonate
Label
Polycarbonate
Reflective layer
Bonding layer
Semi-reflective
Polycarbonate
DVD+R
DVD+RW
Dye
Phase change
4.7GB
4.7GB
650nm
650nm
45~85%
18~30nm
0.74
0.74
0.4
0.4
>0.6
>0.6
26.16MHz
26.16MHz
817.4KHz
817.4KHz
+
+
0.7
0.1
0.7
0.1
<9%
<9%
33

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