1. A method of processing a set of media items, said method comprising the steps of: (a) selecting a sub-set of said media items; (b) concurrently displaying (i) a spatial representation of the selected sub-set and (ii) a temporal representation of the selected sub-set; (c) selecting one of a temporal navigation mode and a spatial navigation mode; (d) providing a spatial navigation command, if the spatial navigation mode has been selected, to the spatial representation to thereby modify the selection of the sub-set of said media items, to thereby contemporaneously change the spatial representation and the corresponding temporal representation; and (e) providing a temporal navigation command, if the temporal navigation mode has been selected, to the temporal representation to thereby modify the selection of the sub-set of said media items, to thereby contemporaneously change the temporal representation and the corresponding spatial representation.