INFORMATION REPRODUCING METHOD, INFORMATION REPRODUCING DEVICE AND INFORMATION RECORDING MEDIUM

摘要

PROBLEM TO BE SOLVED: To permit finer data management by making it possible to assign the setting of an erasure level in a finer unit. SOLUTION: When a set range of division is not the unit cell of a current cell, this current cell is divided by a cell carving up section and the column of the divided cells is set. The management information for reproduction of the divided cells and the current cell is rebuilt by rebuilding means.