Patent ID: 8010566

Claim:
A non-transitory computer readable medium having stored thereon an extended multimedia file structure from a multimedia file structure, comprising: a metadata section including a media object descriptor field and at least one track pointer; and a media data section including at least one media block indicated by the track pointer, wherein the at least one track pointer indicates a detail media resource contained in an embedded the multimedia file or external the multimedia file, wherein the pointer that indicates the detail media block of the sub multimedia file contains an indicator for the sub multimedia file and an indicator for the detail media block in the sub multimedia file, and wherein at least one media block contains a sub multimedia file having the same format as the multimedia file structure, and the at least one track pointer is the pointer which indicates the detail media block of the sub multimedia file; wherein the multimedia file structure is an MPEG-4 file structure, and the indicator for the detail media block is a track number which represents the detail media block within the sub multimedia file; and wherein the at least one track pointer is the pointer which indicates a detail media block of a reference multimedia file, having the same file format as the multimedia file structure, which is located at an external site accessible through a network.