System and method for determining respective lengths of recording units used for recording different types of data on disc medium

摘要

A recording and reproduction apparatus and method for recording and reproducing different types of data including AV data and PC data on a disc type medium. The type of the recorded data determines the length of recording units used to record the data on the disc. Management information including identification indicating one of the respective types of data is stored at least at two location of a logical volume.