A semiconductor device having a plurality of data recording areas is provided. The semiconductor device includes an input port that receives basic information; an additive data recording area on which additive data serving as information additive to the basic information is recorded; a processing unit which encodes the basic information based on the basic information and the additive data; and a calculation data recording area on which calculation data encoded by the processing unit is recorded such that the calculation data encoded by the processing unit is at a quality level higher than that of the basic information. The processing unit controls the additive data recording area in response to classifying the received basic information on the basis of a class classification adaptive processes.