Patent ID: 7903930

Claim:
A data recording apparatus for recording video data, audio data, or both on a disk-type recording medium, the data recording apparatus comprising: a data recorder operative to record a first digital file including at least one of audio and video data of a specified file size sequentially in a first area of said recording medium, wherein the first digital file being requiring sequential recording in order to ensure a minimum sustained transfer rate., and further operative to record a second digital file including at least one of audio and video data randomly in a second area of said recording medium by copying the at least one of audio and video data from the first digital file from said first area, wherein each of said first and second areas on said recording medium comprise a plurality of recording blocks, and wherein said data recorder is further operative to record said first digital file in said recording blocks in an order of address in said first area and further operative to record said second digital file in said recording blocks in a random order in said second area.