To provide a multimedia data format and a reproducing apparatus capable of being used without concerning about a compression format and optimizing a circuit scale.

The multimedia data format is composed of a multimedia data and a configuration data for realizing the reproducing circuit of the multimedia data at a programmable circuit cell. The reproducing apparatus equipped with the programmable circuit cell comprises a communication means, a means for inputting a multimedia data described in the multimedia data format from the communication means, a means for reconfiguring the circuit cell using a circuit cell configuration data in the data, and a means for reproducing the multimedia data using the circuit cell.