Recording method on rewritable optical disc and optical disc driving apparatus

Abstract

In a recording method on a rewritable optical disc a control data recording zone in which a control data is recorded, is set to a portion of the disc close to a user data recording area in an inner circumference control data record area. A spiral recordable track of the disc is divided into the inner circumference control data record area, the user data recording area, an outer control data record area from an inner circumference side. The control data indicates record states of the inner circumference control data record area, the user data recording area, and the outer control data record area. A new control data is recorded on one of a plurality of record divisions contained in the control data recording zone. A planned record division is set for the control data to be next recorded after the control data is recorded in the one record division.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

FIG. 1 is a block diagram showing a configuration example of a driving apparatus according to an embodiment of the present invention;

FIG. 2 is a diagram showing the format of a rewritable optical disc according to the embodiment;

FIG. 3 is a view explaining a zone arrangement according to the embodiment;

FIGS. 4A, 4B are views showing a block configuration example inside a zone according to the embodiment;

FIGS. 5A, 5B and 5C are views explaining a change in a record state of the rewritable optical disc according to the embodiment; and

FIG. 6 is a view showing an operation example of the driving apparatus according to the embodiment.

Claims

1. A recording method on a rewritable optical disc, comprising: setting a control data recording zone in which a control data is recorded, to a portion of said optical disc which is close to a user data recording area in an inner circumference control data record area;wherein a spiral recordable track of said optical disc is divided into said inner circumference control data record area, said user data recording area, an outer control data record area from an inner circumference side;wherein said control data indicates record states of said inner circumference control data record area, said user data recording area, and said outer control data record area in said optical disc;recording a new control data on one of a plurality of record divisions contained in said control data recording zone; andsetting a planned record division for said control data to be next recorded after said control data is recorded in said record division.

2. The recording method according to claim 1, wherein said set control data recording zone comprises an ending process record area portion in which record pits have been formed until an ending process.

3. The recording method according to claim 1, wherein said record division comprises a plurality of ECC blocks, each of said plurality of ECC blocks being a minimum unit when a data is recorded on said optical disc; said recording comprises:recording said control data to each of said plurality of ECC blocks in record division of said optical disc.

4. The recording method according to claim 1, wherein said control data has a count value in which an order when a data is recorded in said record division is written.

5. The recording method according to claim 1, wherein said control data further has a data indicating a defect detected in the record in said record division.

6. The recording method according to claim 1, wherein said setting a planned record division comprises: setting said record division on an outer circumferential side by one record division as said planned record division each time said control data has been recorded in one of said plurality of record divisions.

7. The recording method according to claim 1, wherein said setting a planned record division comprises: setting said record division on an innermost circumferential side to said planned record division when said control data has been recorded in said record division on an outermost circumferential side, andsaid control data recording zone is used circulatedly.

8. The recording method according to claim 1, further comprising: setting a control data replica zone in which a replica of said control data is recorded on an inner circumferential side of said control data recording zone; andrecording a latest one of said control data and a position data indicating said record division in which said latest control data has been recorded, as a replica control data in said control data replica zone.

9. The recording method according to claim 8, wherein said control data replica zone contains a plurality of ECC blocks, said recording a latest one of said control data comprises:recording said replica control data to one of said plurality of ECC blocks in said control data replica zone.

10. The recording method according to claim 9, wherein said control data replica zone comprises said ECC blocks of a number which is less than 1/10 of a number of said record divisions in said control data recording zone.

11. The recording method according to claim 9, wherein said recording a latest one of said control data comprises: recording said replica control data to said control data replica zone when said optical disc is ejected.

12. The recording method according to claim 9, wherein said recording a latest one of said control data comprises: circulatedly using said plurality of ECC blocks in said control data replica zone.

13. An optical disc drive apparatus comprising: an optical head configured to irradiate a laser beam to an optical disc to record a data, and to reproduce a reproduction signal of the recorded data based on a reflection beam reflected by said optical disc;wherein in said optical disc, a recordable spiral track is divided into an inner circumference control data record area, a user data recording area, and an outer circumference control data record area from an inner circumferential side;a signal detecting section configured to extract a signal indicating an address of said optical disc based on said reproduction signal;an address determining section configured to specify a position in said optical disc based on the signal indicating said address; anda control data recording section configured to record a control data indicating a record state of said optical disc in one of a plurality of record divisions of a control data recording zone to have been set to a portion of said optical disc close to said user data recording area in said inner circumference control data record area specified by said address determining section, and to set a planed record division where said control data is recorded.

14. The optical disc drive apparatus according to claim 13, wherein said control data recording section circulatedly assigns each of said plurality of record divisions as said planed record division.

15. The optical disc drive apparatus according to claim 13, wherein said control data recording section records a latest one of said control data and a data indicating a position of said record division where said latest control data has been recorded in a control data replica zone provided on a further inner circumferential side than said control data recording zone as a replica control data.

16. The optical disc drive apparatus according to claim 15, wherein said control data replica zone comprises a plurality of ECC blocks less than a number of record divisions contained in said control data recording zone, and said control data recording section records said replica control data to one of said plurality of ECC blocks contained in said control data replica zone.

17. The optical disc drive apparatus according to claim 15, wherein said control data recording section records said replica control data when said optical disc is ejected.

18. The optical disc drive apparatus according to claim 16, wherein said control data recording section records said replica control data by using said plurality of ECC blocks contained in said control data replica zone circulatedly.

19. The optical disc drive apparatus according to claim 17, wherein said control data recording section records said replica control data by using said plurality of ECC blocks contained in said control data replica zone circulatedly.