Method for creating defect management information in an recording medium, and apparatus and medium based on said method

A method according to claim1, wherein said step (b) determines the movement of the data recorded in the detected defective area into the replacement area based on whether or not the data on the defective area is real-time data.

A method for creating and writing defect management information of an information recording medium, comprising the steps of:

• (a) detecting the presence of defective area in an information recording medium based on data reproduced from the information recording medium;
• and
• (b) determining whether to move the data recorded on the detected defective area into a replacement area based on type of the data.

An information recording medium, comprising of:

• a first area for storing defect management information which is used for controlling the replacement of a defective area with a replacement area;
• and
• a second area for storing the information signifying that the replacement of the defective area is based on the type of the data recorded on the defective area.

An information recording medium according to claim l, wherein said first area and said second area are located in either lead-in area or lead-out area.

An apparatus creating and writing defect management information of an information recording medium, comprising:

• a means for detecting the presence of defective area in an information recording medium based on data reproduced from the information recording medium;
• and
• a means for determining whether to move the data recorded on the detected defective area into a replacement area based on the type of the data.