Patent ID: 7349623
Filing Date: 2008-03-25
Classification: G11B,H04N

Abstract:
1. 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 at least a specified file size sequentially in a first area of said recording medium, and further operative to record a second digital file including at least one of audio and video data of less than the specified file size randomly in a second area of said recording medium, by copying the at least one of audio and video data from said first area while the at least one of audio and video data is recorded in said first area, the first digital file requiring sequential storage in order to ensure a minimum sustained transfer rate; wherein each of said first and second areas on said recording medium comprises a plurality of recording blocks; and wherein said data recorder is operative to record said first digital file in a plurality of physically contiguous sequentially ordered recording blocks in an order of address in said first area and not permit fragmentation or partial erasure of the first digital file in the first area.