A condiment dispensing device is formed from two containers held together with interlocking nozzle plug pairs. The liposomes have improved pharmacokinetics and enhanced efficacy as anti-tumor agents compared to the free drug. In order to decrease a value of an input bit rate of media data input to the buffer 17 in accordance with the value of the output bit rate, the CPU 14 decreases the value of the input bit rate based on an upper limit of the input bit value that is a value resulted from adding the detected value of the output bit rate and the calculated value of the decrease ratio.