Combination Type Optical Disk Medium, Its Reproduction Method And Optical Disk Apparatus
AssigneeHitachi, Ltd.
InventorHiroshi Hirayama
Life of this patent
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Abstract
A combination type optical disk medium and recording or reproducing method in which the medium include first and second recording layers based on different recoding densities. First and second volume spaces are formed to the first and second recording layers, respectively. Each volume space includes identification information of a head or end of the volume space, and an area for data. One of the volume spaces is recorded with identification information of the other volume space.
Claims9
A combination type optical disk medium comprising:
- first and second recording layers based on different recoding densities;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein each volume space includes identification information of a head or end of the volume space, and an area for data;
- and
- wherein one of the volume spaces is recorded with identification information of the other volume space.
A reproducing method for a combination type optical disk medium having first and second recording layers based on different recording densities;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein each volume space includes identification information of the head or end of the volume space;
- and an area for data, and wherein one of the volume spaces is recorded with identification information of the other volume space;
- the reproducing method comprising the step of:
- reproducing user data according to the identification information of the head or end of the volume space.
A combination type optical disk medium comprising:
- two different types of first and second recording layers;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein each volume space includes
- identification information of a head or end of the volume space, and an area for data;
- and
- wherein one of the volume spaces is recorded with identification information of the other volume space.
A recording method for a combination type optical disk medium having two different types of first and second recording layers;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein each volume space includes identification information of a head or end of the volume space, and an area for data;
- and wherein one of the volume spaces is recorded with identification information of the other volume space;
- the recording method comprising the step of:
- recording user data according to the identification information of the head or end of the volume space.
A reproducing method for combination type optical disk medium having two different types of first and second recording layers;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein each volume space includes identification information of a head or end of the volume space, and an area for data;
- and wherein one of the volume spaces is recorded with identification information of the other volume space;
- the reproducing method comprising the step of:
- reproducing user data according to the identification information of the head or end of the volume space.
A combination type optical disk medium comprising:
- two different types of first and second recording layers;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein a relation between the first recording layer of the first volume and the first recording layer of second volume is a parallel track pass;
- and
- wherein a relation between the layers in each volume is an opposite track pass.
A recording method for a combination type optical disk medium having two different types of first and second recording layers;
- wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein a relation between the first recording layer of the first volume and the first recording layer of the second volume is a parallel track pass;
- and
- wherein a relation between the layers in each volume is an opposite track pass;
- the recording method comprising the step of:
- recording user data according to the track pass.
A reproducing method for a combination type optical disk medium having two different types of first and second recording layers, wherein first and second volume spaces are formed to the first and second recording layers, respectively;
- wherein a relation between the first recording layer of the first volume and the first recording layer of second volume is a parallel track pass;
- and
- wherein a relation between the layers in each volume is an opposite track pass;
- the reproducing method comprising the step of:
- reproducing user data according to the track pass.
Dependencies are inferred from the claim text.