An apparatus for writing and/or reading write protection data using a recording medium storing write protection information, and a write protection method and apparatus for protecting data recorded on a recordable and/or rewritable disc from unwanted overwriting or erasing. In order for write protection...http://www.google.com/patents/US7362678?utm_source=gb-gplus-sharePatent US7362678 - Recording medium for storing write protection information and write protection method thereof
