US Patent 7599601 Recording method and recording device

A recording device and a method therefor for recording data on a given recording medium having a maximum number of recording units available for recording and a maximum number of sub-recording units within each recording unit determined by a format thereof. In the method and device, a restriction is applied so as not to enable an additional recording on the recording medium at the time when a number of the recording units recorded on the recording medium has reached the maximum number of recording units and recording of up to a first sub-recording unit within the last recording unit has been performed. Thus, it becomes possible to prevent occurrence of a situation, which is difficult for a user to understand, e.g. the situation where the remaining capacity for recording suddenly disappears owing to e.g. change in recording mode when recording on the recording medium is performed with a recording device.