Toshiba SD-R5112 User Manual

12/29

SD-R5112 Rev.1.0

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

ID Data (Dual layer Parallel track path)

0

1

Lead-in

    Area

1 - Disc

ECC Block     1

2
3

4
5

6

2
3
4

6

5

Approx. 130 k

   ECC Block

ID No.  

xxh - 2FFFFh

xxh - 2FFFFh

ID Data(4B)

ID Data EDC(2B)

Reserved (6B)

Main Data

(2048B)

nnnn

EDC (4B)

EDC(4B)

nnnn+15

ECC(160B)

Sector Format Type

Tracking Method

Refectivity

Area Type:

   Data Area

   Lead-in Area

   Lead out Area

ECC Block     1

Lead-out

    Area

Data

    Area

ID No.  

ID Data(4B)

ID Data EDC(2B)

Reserved (6B)

Main Data

     (2048B)

Layer

 No.  

Data

    Area

Lead-in

     Area

Approx. 130 k

   ECC Block

Lead-out

    Area

Layer Number:

   Layer 0

   Layer 1

Information

~

~

~

~

~

~

~

~

Figure 4 DVD-ROM Disc Data Configuration

5.1.2. CD-ROM Data Configurations

Figure 5 shows how the data is structured in program units

1 block=1/75 s

Time

TNO

TOC

0

Lead-in

Min

Sec

Block

Block 1

Min

Sec

Block

1

Block 2

2

approx.

300 k-Blocks

AA

Lead out

1-Disc

Header

Minutes

Second(0~59)

Blocks(0~74)

Mode

4 bytes

User Data

2048 bytes in Mode-1
2336 bytes in Mode-2

ECC (Mode-1)
288 bytes

SYNC

12 bytes

~

~

~

~

~

~

~

~

Figure 5 CD-ROM Disc Data Configuration