A holographic recording method and a holographic recording apparatus
capable of selectively rewriting or erasing only desired data without
degrading data other than the desired data are provided. Holograms are
multiple recorded per file, and page data in one file is multiple
recorded, while page data in one file and page data in another file are
not multiple recorded. Therefore, only the desired file can be
selectively rewritten or erased without degrading the other files.