Patent ID: 7743037

Claim:
An information processing apparatus for processing material data forming content and content data formed by metadata to be attached to said material data, said apparatus including a computer, a processor, and a memory, comprising: material data destructive editing means for executing destructive editing in which data is actually updated for said material data; metadata identifying means for identifying metadata that is affected by the destructive editing of said material data by said material data destructive editing means; and metadata updating means for updating said metadata identified by said metadata identifying means, said metadata updating means comprising: realtime metadata updating means for updating realtime metadata requiring realtime nature in reproducing said realtime metadata at the time of reproducing said material data, said realtime metadata to be added to said material data, and nonrealtime metadata updating means for updating nonrealtime metadata requiring no realtime nature in reproduction of said nonrealtime metadata at the time of reproduction of said material data, said nonrealtime metadata to be added to said material data, wherein said material data destructive editing means destructively edits said material data and updates identification information to be attached to said material data, said metadata identifying means identifies metadata having identification information for identifying metadata to be destructively edited by said material data destructive editing means, and said metadata updating means updates said identification information for identifying said material data to be destructively edited included in said metadata identified by said metadata identifying means to said identification information updated by said material data destructive editing means.