Patent ID: 8270813
Filing Date: 2012-09-18
Classification: G06F,G11B,H04N

Abstract:
1. An information processing apparatus for recording data in a file by first unit on a recording medium in accordance with a predetermined file system, comprising: recording control means for performing a recording control operation to record a predetermined file on the recording medium, the recording control operation including data recording control for recording successively the data on the recording medium by first unit and management information updating control for updating management information of the predetermined file system on the recording medium; generating means for successively generating difference information of the management information by second unit during the recording control operation of the recording control means, the second unit being an integer multiple of the least common multiple of the first unit and a minimum unit of the predetermined file system; and backup storage means for storing as backup information the difference information generated by the generating means, wherein the data is recorded on the recording medium in the form of a plurality of the first units, each having a fixed data size, and the difference information is recorded in a backup memory in the form of a plurality of the second units each having a fixed data size, and wherein the data and difference information are recorded at the same time.