LG Electronics GSA-4168B, GSA-4165B Disc Center, Diameter 120 mm, Layout of DVD-ROM disc

6.Organization of the Inner Drive Area, Outer Drive Area, Lead-in Zone and Lead-out Zone

1) Layout of DVD-ROM disc

Disc Center Diameter 120 mm

Diameter 44 mm

Diameter 33 mm

Diameter 22 mm

Diameter 16 mm

Diameter 15 mm

Center	Clamping	3rd transtion	Information Zone
hole	Zone	area
1st transition area			Rim area
2nd transition area

Read Only Disc

Lead-in Zone

Data Zone

Lead-out Zone

2) Layout of DVD+R disc

Disc Center Diameter 120 mm

Diameter 44 mm

Diameter 33 mm

Diameter 22 mm

Diameter 16 mm

Diameter 15 mm

Center	Clamping	3rd transtion	Information Zone
hole	Zone	area
1st transition area			Rim area
2nd transition area

Unrecorded Disc

Inner Drive Area

Lead-in Zone

Data Zone

Lead -out Zone

Outer Drive Area

Inner Disc Test Zone

Inner Disc Count Zone

Outer Disc Test Zone

Outer Disc Count Zone

in

OUT

PSN: 23080H 27080H 27480H 28480H 2A480H 30000H 260540H 261940H 262940H 263940H 267940H

>Inner Disc Test Zone : for performing OPC procedures.

>Inner Disc Count Zone : for counting the number of OPC algorithm performed in IDT Zone.

>Outer Disc Test Zone : for performing OPC procedures.

>Outer Disc Count Zone : for counting the mumger of OPC algorithm performed in IDT Zone.

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