5. The method of claim 1 , wherein generating the content index comprises pattern recognition that extracts content information about one or more audio sequences in the file being archived.
1. A method of archiving a file to secondary storage in an information management system, the method comprising: archiving a file to secondary storage, by a media agent component of the information management system that has been identified for archiving the file, wherein the archiving comprises: (a) dividing the file being archived into a plurality of independently accessible smaller portions of an archive copy of the file, and (b) multi-dimensional indexing of the file being archived, wherein the multi-dimensional indexing comprises: (i) generating a file attribute index, which includes extrinsic information about the file being archived that is independent of file contents, and (ii) generating a content index of at least one of: text content, picture content, video content, and audio content of the file being archived, and (c) wherein each independently accessible smaller portion in the plurality of independently accessible smaller portions of the archive copy is identified at least once in at least one of the file attribute index and the content index; providing to a user of the information management system a fast-forward progression through the plurality of independently accessible smaller portions of the archive copy without restoring each independently accessible smaller portion from secondary storage, wherein the fast-forward progression is based on searching at least one of the file attribute index and the content index; and restoring a first independently accessible portion of the archive copy to a user-device component of the information management system without having to also restore the other independently accessible smaller portions of the archive copy, wherein the first independently accessible smaller portion of the archive copy is found by a search filter searching at least one of the file attribute index and the content index within the information management system.