A reproduction apparatus comprising a communication unit adapted to
receive digital data distributed by a distribution apparatus, a
reproduction unit adapted to reproduce the digital data received by the
communication unit, a prediction unit adapted to predict a reproducible
time using remaining power of a battery before the reproduction apparatus
requests the distribution apparatus to distribute the digital data, and a
determination unit adapted to determine whether the digital data can be
reproduced to the end or not based on the reproducible time predicted by
the prediction unit. If the determination unit determines that the
digital data can be reproduced to the end, the reproduction apparatus
requests the distribution apparatus to distribute the digital data to be
reproduced by the reproduction unit, and if the determination unit
determines that the digital data cannot be reproduced to the end, the
reproduction apparatus issues an alarm indicating that the digital data
cannot be reproduced to the end.