Patent ID: 7529159

Claim:
An information recording apparatus for recording record information onto an information recording medium comprising: at least a first recoding layer having a first recording capacity; and a second recording layer having a second recording capacity, the first recording layer having a first buffer area for layer change and the second recording layer having a second buffer area for the layer change, said information recording apparatus comprising: a writing device for writing the record information into the first recording layer and the second recording layer; a calculating device for calculating a turn-around address when the record information is recorded continuously into the first recording layer and the second recording layer, on the basis of an entire information amount of the record information and the first and second recording capacities; and a controlling device for controlling said writing device (I- 1 ) to write a first portion of the record information into the first recording layer up to the calculated turn-around address, (I- 2 ) to write a first dummy data into a part of the first buffer area after the calculated turn-around address (II- 1 ) to write a second dummy data into a part of the second buffer area before a corresponding address in the second recording layer which corresponds to the calculated turn-around address in the first recording layer and (II- 2 ) to write a remaining second portion of the record information into the second recording layer from the corresponding address in the second recording layer.