Recording Layer; Disc Specification - LG CED-8042B Manual

What are the differences between CD-R/CD-RW discs

1. Recording Layer

Recordable CD has a wobbled pre-groove for laser guide on the surface of disc before recording.
Read-only Disc
CD-R and CD-RW Disc
(Pit)Groove
Land

2. Disc Specification

Standard
Record
Tracking Signal I 11/I
(HF Modulation)
Write Laser Power
Read Laser Power
Jitter
Reflectivity (R
14
and standard CD-ROM?
0.4um
CD-ROM
Yellow Book
Not available
top
> 0.6
< 0.5 mW
< 35 nsec
) 70 %
top
Track pitch(p)
A
Iw
O
a
Groove
Land
a
CD-R
Orange Book II
Write once
> 0.6
4-15 mW
< 0.7 mW
< 35 nsec
65 %
Radial Direction
Radial Error Signal
Average center
Actual center
The Groove wobble
CD-RW
Orange Book III
Re-writable
0.55 > M > 0.70
11
6-14 mW
< 1.0 mW
< 35 nsec
15 % ~ 25 %