Abstract: A computer-driven method for the initialization of re-writable optical media is provided. Embodiments include a method for the formatting of optical media to include defining a file system and writing a UDF reader to the optical media to enable implementation on a plurality of optical media devices in a plurality of operating system environments. The optical media is initialized using either user data or initialization patterns in a background operation to allow user interaction with the optical media during initialization. Prior to initialization of the entire media space of an optical media, a session may be closed to enable compatibility of a partially initialized media. Further methods are provided to re-open a closed session to complete initialization of the media space.