Recording medium and reproducing apparatus
AssigneeSony Corporation
InventorMuneyasu Maeda
Life of this patent
Estimating the term…
Abstract
A recording medium includes a program area in which digital data made up of a header, main data and sub-data is blocked and recorded with a variable number of sectors, with a unit sector being of a pre-set data length, and a management area in which there is recorded an identifier for discriminating the variable number of sectors in order to render the data volume of the sub-data variable with the volume of main data in the packet remaining fixed.
Claims10
A recording medium, comprising:
- a program area in which digital data made up of a header, main data and sub data is blocked and recorded with a variable number of sectors, with a unit sector having a pre-set data length;
- and
- a management area in which there is recorded an identifier for discriminating the variable number of sectors in order to render a data volume of the sub data variable with a volume of the main data in a block remaining fixed.
A recording/reproducing apparatus for reproducing a recording medium having a program area in which digital data made up of a header, main data and sub data is blocked and recorded with a variable number of sectors, with a unit sector being of a pre-set data length, and a management area having recorded therein an identifier for discriminating a variable number of sectors in order to render a data volume of the sub data variable with a volume of the main data in a block remaining fixed, said recording/reproducing apparatus comprising:
- reproducing means for reproducing the digital data recorded in said program area and the identifier recorded in said management area;
- separating means for separating the main data and the sub data from the digital data reproduced by said reproducing means from the program area of the recording medium;
- and
- control means for controlling said separating means based on said identifier that is reproduced from said management area of said recording medium by said reproducing means and which is used for identifying the variable number of sectors.
Dependencies are inferred from the claim text.