An information recording/reproduction apparatus according to one aspect of
this invention includes a first recording/reproduction unit configured to
execute recording, reproduction, and deletion of information for a
built-in first recording medium, a second recording/reproduction unit
configured to execute recording and reproduction of information for a
detachable second recording medium, a recording control unit configured
to control to record a library information file, that contains a
plurality of pieces of library information corresponding to a plurality
of contents information recorded on the first and second recording media,
on the first recording medium, and a deletion control unit configured to
execute a process for deleting all pieces of library information
contained in the library information file, and a process for deleting all
pieces of contents information recorded on the first recording medium.