Patent ID: 7613867

Claim:
An information recording apparatus comprising: temporary storage means temporarily storing data in a data recordable information recording medium on the occasion of recording and/or reproduction; and control means dividing a storage area of said temporary storage means to a plurality of areas according to a mode of recording the data in said information recording medium, wherein: recording means for recording data in the recording area of said information recording medium and reproducing means for reproducing data recorded in the recording area of the information recording medium are provided; said control means divides the storage area of said temporary storage means into at least a recording data storage area storing data to record in the information recording medium and a reproduced data storage area storing data reproduced from the information recording medium; storing the data to record in the information recording medium in said recording data storage area; and, when a reproduction request is received during recording by said recording means, said reproducing means is made to store data reproduced from the information recording medium in said reproduced data storage area; and said recording means keeps a waiting state of waiting before starting data recording until a data occupation amount in said recording data storage area reaches a predetermined threshold, enters a recording state starting the data recording when the data occupation amount exceeds the predetermined threshold, and records data in the recording area of the information recording medium; and means for immediately causing the reproducing means to reproduce data when a reproduction request is received during the waiting state is provided.