INFORMATION STORAGE MEDIUM, RECORDING / PLAYBACK APPARATUS, AND RECORDING / PLAYBACK METHOD.

摘要

According to the present invention, a medium, an apparatus and a method for efficiently managing a space bitmap are provided. The information storage medium according to the present invention comprises: a user data region in which user data is recorded; and a temporary disk management region in which a space bitmap indicating the recorded state of blocks of a recording / playback unit of the user data region is indicated, wherein the space bitmap includes information on an allocated additional space bitmap when a space of the space bitmap is insufficient for indicating the recorded state of the record / playback unit blocks of the user data region.