Patent ID: 7260582

Claim:
An information recording apparatus comprising: a recording control section recording, in a packet format of a fixed length that is not in an integral multiple relationship with a data size of a logical block of a recording medium, an input data stream in the recording medium as a first file; and an editing control section dividing the first file at two points ending a packet and starting another packet and combining a portion preceding the first point ending the packet and a portion following the second point starting the another packet without including a portion between the two points; wherein the editing control section records a second file including a portion from a head of the first file to the first point ending the packet, a third file including a portion from the second point starting the another packet to a third point ending a logical block and a fourth file including a rest of the packet in the first file in the recording medium; and records a relation information file containing information on a relation between the second file, the third file and the fourth file in the recording medium.