Toshiba SR-C8002 specifications 11/24, Functions

5.Functions

5.1.Disc Data Configurations

5.1.1.CD-ROM Data Configurations

Figure 5 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 5 CD-ROM Disc Data Configuration

5.1.2.CD-R / CD-RW Data Configurations Before writing

CD-R / CD-RW disc contains time-code information called ATIP.

ATIP is abbreviation of "Absolute Time In Pre-groove" in the wobbling groove by modulating the carrier frequency.

(Address information is pre-formatted to ATIP on the CD-R / CD-RW disc and method for the guide groove to wobble by FM modulation.)

Figure 6 shows the composition of ATIP.

(n-1) Address

n Address

n+1 Address

n+2 Address

Synchronization	(4 bit)
Min	(8 bit)
Sec	(8 bit)
Frame	(8 bit)
CRC	(14 bit)

Figure 6 CD-R / CD-RW Disc ATIP Data Configuration

After Writing

Data are written in CD format synchronizing with ATIP.

11/24 SR-C8002 Rev.1.0