Recording medium, data recording and reproducing device, and system for collecting reproduction control information

摘要

A recording medium 100 having recorded digital data includes a content data storage region 10, a reproduction control information storage region 20 having a parameter for determining a reproduction frequency at random reproduction, and an index storage region 30. The reproduction control information in the reproduction control storage region 20 is updatable. Therefore, the reproduction control information helps the reproduction frequency to change at reproduction if utilized for determining the reproduction frequency in a data recording and reproducing device.