Toshiba SD-R6112 13/28, Functions, Disc Data Configurations DVD-ROM Data Configurations

5.Functions

5.1.Disc Data Configurations

5.1.1.DVD-ROM Data Configurations

Figure 7 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)

	Layer	Information
	No.		ID No.
1 - Disc		Lead-in	xxh - 2FFFFh
		Area
			ECC Block 1
			2
			3
			4
	0	Data	5
			6
		Area

~~ Approx. 130 k ECC Block

		Lead-out
		Area
		Lead-in	xxh - 2FFFFh
		Area
			ECC Block 1
			2
			3
			4
	1	Data	5
			6
		Area
~			Approx. 130 k
			ECC Block
		Lead-out
		Area

		ID No.
				ID Data(4B)
				ID Data EDC(2B)
		nnnn		Reserved (6B)
				Main Data
				(2048B)
				EDC (4B)
~
	~		~		~
				ID Data(4B)
				ID Data EDC(2B)
				Reserved (6B)
		nnnn+15		Main Data
				(2048B)
				EDC(4B)
			ECC(160B)
~

Sector Format Type

Tracking Method

Refectivity

Area Type: Data Area Lead-in Area Lead out Area

Layer Number:

Layer 0

Layer 1

Figure 7 DVD-ROM Disc Data Configuration

5.1.2. CD-ROM Data Configurations

Figure 8 shows how the data is structured in program units 1 block=1/75 s

1-Disc

TNO	Time
0	TOC	Lead-in
	Min
	Sec	Block 1
	Block
1	Min
	Sec	Block 2
	Block
		approx.
2		300 k-Blocks

SYNC 12 bytes

Header

User Data

2048 bytes in Mode-1

2336 bytes in Mode-2

~

ECC (Mode-1)

~288 bytes

4 bytes

~

~

Minutes

Second(0~59)

Blocks(0~74)

Mode

~		~	~	~
	AA			Lead out

Figure 8 CD-ROM Disc Data Configuration

13/28 SD-R6112 Rev.1.0