Method and system for indexing and searching timed media information based upon relevance intervals

A method of indexing and searching timed media files comprising the steps of:

• extracting data from a timed media file, said extracted data comprising at least one information representation, wherein each of said at least one information representation is an indicator of material relevant to a search;
• and
• calculating relevance intervals for each of said at least one information representation from said extracted data, wherein each relevance interval is a continuous section of the timed media file in which a corresponding one of said at least one information representation occurs in the timed media file and which is deemed relevant to the corresponding one of said at least one information representation based on said extracted data, said calculation of relevance intervals for each of said at least one information representation including a calculation of relevance interval start and end times that is dependent upon the information representation such that each continuous section of the timed media file has start and end times.