Write-once optical disc and method for managing spare area thereof

A method for managing a spare area of a write-once optical disc possibly having a temporary defect management area within one or more spare areas, the method comprising the steps of:

• allocating only the spare area not including the temporary defect management area at an initial status of the optical disc;
• and
• during use of the optical disc, additively allocating the spare area including the temporary defect management area.

A method for managing a spare area of a write-once optical disc possibly having a temporary defect management area within one or more spare areas, the method comprising the steps of:

• allocating one or more spare areas including the temporary defect management area at an initial status of the optical disc;
• and
• during use of the optical disc, reducing an area except for the temporary defect management area in the spare area allocated including the temporary defect management area to set a new spare area.

A method for managing a spare area of a write-once optical disc possibly having a temporary defect management area within one or more spare areas, the method comprising the steps of:

• allocating an expanded area discriminated from the spare area and a user data area;
• and
• during use of the optical disc, expanding the spare area and the user data area into the expanded area as necessary.

A write-once optical disc provided with a lead-in area and a data area, at least one or more spare areas including a temporary defect management area being allocated in the data area, a new spare area being possibly set by expanding or reducing the spare area allocated including the temporary defect management area.

A write-once optical disc provided with a lead-in area and a data area, the data area being provided therein with a spare area and a user data area, and further provided with a separate expanded area such that the spare area or the user data area is expandable as necessary.

An optical record reproducing apparatus of a write-once optical disc comprising:

• a control part for determining whether or not a spare area is additively allocated;
• and
• a recording/reproducing part for expanding a spare area including a temporary defect management area when it is necessary to additively allot the spare area depending on the determination, and setting a new spare area.

An optical record reproducing apparatus of a write-once optical disc comprising:

• a control part for determining whether or not an allocated spare area is reduced;
• and
• a recording/reproducing part for reducing a spare area including a temporary defect management area when it is necessary to reduce the spare area depending on the determination, and setting a new spare area.