File Processing Apparatus, File Processing Method, Program and Recording Medium

A file processing method recording an index file in a recording medium, which manages one or more content files recorded in the recording medium, comprising:

• an index file generation step generating the index file based on attribute information of the content files and folders including the content files;
• and
• a recording step recording the index file generated in the index file generation step in the recording medium, and
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy;
• and
• wherein the index generation step provides
• the prescribed number of management information areas corresponding to the content files and the folders respectively in the index file,
• second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy in a list format at first management information areas corresponding to the folders in the upper hierarchy, and
• first index information indicating the first management information areas at the second management information areas.

A program for allowing a computer to execute a file processing method for recording an index file in a recording medium, which manages one or more content files recorded in the recording medium, comprising:

• an index file generation step generating the index file based on attribute information of the content files and folders including the content files;
• and
• a recording step recording the index file generated in the index file generation step in the recording medium, and
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy;
• and
• wherein the index generation step provides
• the prescribed number of management information areas corresponding to the content files and the folders respectively in the index file,
• second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy in a list format at first management information areas corresponding to the folders in the upper hierarchy, and
• first index information indicating the first management information areas at the second management information areas.

A recording medium which is readable by a computer, which records a program for allowing a computer to execute a file processing method for recording an index file in a recording medium, which manages one or more content files recorded in the recording medium, said file processing method comprising:

• an index file generation step generating the index file based on attribute information of the content files and folders including the content files;
• and
• a recording step recording the index file generated in the index file generation step in the recording medium, and
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy;
• and
• wherein the index generation step provides
• the prescribed number of management information areas corresponding to the content files and the folders respectively in the index file, and
• second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy in a list format at first management information areas corresponding to the folders in the upper hierarchy, and
• first index information indicating the first management information areas at the second management information areas.

A file processing apparatus playing an index file from a recording medium, which manages one or more content files recorded in the recording medium, comprising:

• an index file playing unit playing the index file from the recording medium, and
• wherein the prescribed number of management information areas corresponding to the content files and folders including the content files respectively are provided in the index file,
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy,
• wherein second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy is provided in a list format at first management information areas corresponding to the folders in the upper hierarchy, as well as first index information indicating the first management information areas is provided at the second management information areas, and
• wherein the index file playing unit plays
• the second management information areas based on the second index information set at the first management information areas and
• the first management information areas based on the first index information set at the second management information areas.

A file processing method playing an index file from a recording medium, which manages one or more content files recorded in the recording medium, comprising:

• an index file playing step playing the index file from the recording medium, and
• wherein the prescribed number of management information areas corresponding to the content files and folders including the content files respectively are provided in the index file,
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy,
• wherein second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy is provided in a list format at first management information areas corresponding to the folders in the upper hierarchy, as well as first index information indicating the first management information areas is provided at the second management information areas, and
• wherein the index file playing step plays
• the second management information areas based on the second index information set at the first management information areas and
• the first management information areas based on the first index information set at the second management information areas.

A program for allowing a computer to execute a file processing method for playing an index file from a recording medium, which manages one or more content files recorded in the recording medium, comprising:

• an index file playing step playing the index file from the recording medium, and
• wherein the prescribed number of management information areas corresponding to the content files and folders including the content files respectively are provided in the index file,
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy,
• wherein second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy is provided in a list format at first management information areas corresponding to the folders in the upper hierarchy, as well as first index information indicating the first management information areas is provided at the second management information areas, and
• wherein the index file playing step plays
• the second management information areas based on the second index information set at the first management information areas and
• the first management information areas based on the first index information set at the second management information areas.

A recording medium which is readable by a computer, which records a program for allowing a computer to execute a file processing method for playing an index file from a recording medium, which manages one or more content files recorded in the recording medium, said file processing method comprising:

• an index file playing step playing the index file from the recording medium, and
• wherein the prescribed number of management information areas corresponding to the content files and folders including the content files respectively are provided in the index file,
• wherein the content files and the folders form a hierarchy structure in which the folders are in an upper hierarchy,
• wherein second index information indicating second management information areas corresponding to the folders or the content files positioned in a lower hierarchy of the folders in the upper hierarchy is provided in a list format at first management information areas corresponding to the folders in the upper hierarchy, as well as first index information indicating the first management information areas is provided at the second management information areas, and
• wherein the index file playing step plays
• the second management information areas based on the second index information set at the first management information areas and
• the first management information areas based on the first index information set at the second management information areas.