Patent ID: 7836109

Claim:
A recording apparatus which records at least content data and reproduction control information with which reproduction of the content data is controlled to a record medium, comprising: a recording section which records to the record medium an index table with which reproduction of content data is managed, an object which is called to the index table and which represents a method of reproducing at least the content data, a play list called from the object, and clip information which is called based on the play list and which represents attribute information of at least the content data, wherein at least the index table, the play list, and the clip information each are capable of containing extension data, wherein the extension data contain a main body of the extension data, main identification information, and sub identification information as identification information which identifies the extension data, and wherein the main identification information represents a group or an organization which has defined the extension data, and wherein the sub identification information represents an application of which the extension data are used.