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5.Functions
5.1. Disc Data Configurations
5.1.1. DVD-ROM Data Configurations
Figure 4 shows how data is constructed in the case of dual layer/parallel track data DVD disc.
The DVD spec defines the single layer, the dual layer/opposite and parallel track disc, that the
DVD-ROM drive supports. For details refer to DVD Book Part 1.
1 block=1/676 s
Layer
1 - Disc
~
~
5.1.2. CD-ROM Data Configurations
Figure 5 shows how the data is structured in program units
1 block=1/75 s
1-Disc
ID Data (Dual layer Parallel track path)
Information
ID No.
No.
Lead-in
xxh - 2FFFFh
Area
ECC Block
0
Data
Area
~
Approx. 130 k
ECC Block
Lead-out
Area
Lead-in
xxh - 2FFFFh
Area
ECC Block
1
Data
Area
Approx. 130 k
ECC Block
Lead-out
Area
Figure 4 DVD-ROM Disc Data Configuration
TNO
Time
TOC
Lead-in
0
Min
Block 1
Sec
Block
1
Min
Block 2
Sec
Block
approx.
2
300 k-Blocks
~
~
~
Lead out
AA
Figure 5 CD-ROM Disc Data Configuration
ID No.
ID Data(4B)
ID Data EDC(2B)
1
2
Reserved (6B)
nnnn
3
Main Data
4
5
(2048B)
6
EDC (4B)
~
~
~
ID Data(4B)
ID Data EDC(2B)
Reserved (6B)
Main Data
nnnn+15
1
2
EDC(4B)
3
4
ECC(160B)
5
6
~
SYNC
12 bytes
Header
User Data
2048 bytes in Mode-1
2336 bytes in Mode-2
~
ECC (Mode-1)
~
288 bytes
~
12/29
Sector Format Type
Tracking Method
Refectivity
Area Type:
Data Area
Lead-in Area
~
Lead out Area
Layer Number:
Layer 0
Layer 1
(2048B)
4 bytes
~
~
Minutes
Second(0~59)
Blocks(0~74)
Mode
SD-R5112 Rev.1.0
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