Patent ID: 6920278

Claim:
A recording/reproduction apparatus comprising: a first information recording means for recording information, including information of a time and date of recording on a first recording medium from a recording starting point of said first recording medium in an order of time and date of recording; a recording capacity determining means for judging if said first recording medium has a remaining recording capacity sufficient for recording said information; an oldest information detecting means for detecting one or more pieces of information having an oldest time and date of recording out of a plurality of pieces of information recorded on said first recording medium; a recording control means for controlling an operation of recording information not recorded on said first recording medium in a recording area of said first recording medium and for storing said one or more pieces of information having the oldest time and date of recording as detected by said oldest information detecting means if the information not recorded on said first recording medium is supplied and said recording capacity determining means judges that said recording medium does not have said remaining recording capacity; and an erasure prohibiting means for specifying one or more pieces of information recorded by said first information recording means on said first recording medium for prohibition of erasure; wherein the oldest time and date of recording of said one or more pieces of information having been specified for the prohibition of erasure by the erasure prohibiting means are changed to have a current time and date of recording when said first recording medium is filled to capacity.