A magnetic card of the invention comprises a card substrate 11 on which a
magnetic layer 12, a thin-film layer 13 formed of a metal or a metal
compound for concealing the magnetic layer, a printed layer 14 and a
volume hologram layer 15 are successively provided, wherein magnetic
information is recorded on or read from a volume hologram layer side. The
volume hologram layer 15 is composed essentially of a photosensitive
material comprising a cationic polymerizable compound, a radical
polymerizable compound, a photo-radical polymerization initiator system
that is sensitive to light of a specific wavelength to polymerize the
radical polymerizable compound, and a photo-cationic polymerization
initiator system that is less sensitive to the light of a specific
wavelength but sensitive to light of another wavelength to polymerize the
cationic polymerizable compound. The magnetic card is improved in terms
of wear resistance to sliding contact with a magnetic head, and ensures
precise writing or reading of magnetic recording data, with improved
ability to prevent forgery.