Patent ID: 7246249

Claim:
A reproduction apparatus comprising: a reproduction unit that reproduces digital data selected by a user; a detection unit that detects remaining power of a battery; and a determination unit that determines whether the selected digital data can be reproduced to the end or not based on the remaining power detected by the detection unit, before the reproduction unit starts reproducing the selected digital data, wherein if it is determined by the determination unit that the selected digital data can be reproduced to the end, the reproduction apparatus causes the reproduction unit to reproduce the selected digital data, and wherein if it is determined by the determination unit that the selected digital data cannot be reproduced to the end, the reproduction apparatus warns that the selected digital data cannot be reproduced to the end and causes the user to select one of first and second reproduction modes, if the first reproduction mode is selected by the user, the reproduction apparatus causes the reproduction unit to reproduce the selected digital data, and if the second reproduction mode is selected by the user, the reproduction apparatus causes the reproduction unit to reproduce summary data including a summary of the selected digital data.