Patent ID: 6968120

Claim:
An information recording/reproduction device for successively recording or reproducing continuous data, the information recording/reproduction device comprising: an interface operable to exchange data with an external device; a disk controller operable to modulate or demodulate data to be record on or reproduced from, respectively, a disk; a memory for temporarily storing the data to be recorded on or reproduced from the disk; a recording/reproduction circuit operable to record the data on the disk or reproduce the data from the disk; and a CPU for controlling the disk controller, wherein when the recording/reproduction circuit is to record or reproduce a predetermined sector number of second data based on an issuance of a recording command or a reproduction command, respectively, immediately after a predetermined sector number of first data is recorded or reproduced: successively from a position on the disk where recording or reproduction of the second data has become possible with the issuance of the recording command or the reproduction command, the recording/reproduction circuit records the second data from the predetermined sector number in respectively corresponding recording positions on the disk or reproduces the second data from the predetermined sector number which are recorded in the respectively corresponding recording positions on the disk, respectively, and after the recording or reproduction of the second data from the predetermined sector number, with respect to a portion of the second data prior to the predetermined sector number which has not been recorded or reproduced, the recording/reproduction circuit records the portion of the second data in respectively corresponding recording positions on the disk or reproduces the portion of the second data which are recorded in the respectively corresponding recording positions on the disk, respectively, at a next rotation of the disk.