Patent ID: 7840566

Claim:
A digital recording apparatus usable with a recording medium, comprising: means for extracting information of each of a plurality of files recorded on the recording medium; means for correlating the extracted information and the plurality of files and generating an index file; and means for recording the index file on the recording medium, wherein the index file is recorded to a predetermined area of the recording medium, and wherein the extracted information includes property information, and at least one of thumbnail information or title information, wherein the property information pertains to a number of attributes of said plurality of files, includes at least one of the following two items: (i) data indicating whether or not the index file includes thumbnail information, and (ii) data indicating whether or not the index file includes title information, wherein the thumbnail information includes a plurality of representative images which represent the plurality of files, and wherein the property information is correlated to at least one of the file, the thumbnail information and the title information, and the property information includes data representing a data type of the file, which indicates the file is a moving picture file or a still picture file.