A recording medium and a method and apparatus for managing a defective area on the recording medium are provided. The method includes detecting an existence of a defective area within the data area of the recording medium; replacing the defective area with a replacement area in the spare area if the...http://www.google.com/patents/US7992057?utm_source=gb-gplus-sharePatent US7992057 - Write-once type optical disc, and method and apparatus for managing defective areas on write-once type optical disc
