vinyl chloride acetate copolymer an ethylenevinyl acetate copolymer and a silicone resin the protective layer 12 of an organic material as described above can be formed by preparing a solution of the organic material in an organic solvent such as benzene toluene or the like applying the solution on the surface of the oxide layer 11a of the recording layer 11 and removing the organic solvent said protective layer 12 may be formed by using said resin of uncured state without said solvent the protective layer 23 may alternatively be made of an inorganic material such as sio 2 sio in 2 o 3 sno 2 mgo zno zno 2 al 2 o 3 ceo 2 tio 2 mgf 2 caf 2 and cef 3 the protective layer 12 of the inorganic material is formed on the recording layer by vacuum deposition sputtering or the like an embodiment of the manufacturing method of the data recording medium of the construction as described above will now be described with reference to fig4 fig4 is a schematic view showing an embodiment of the method of manufacturing the data recording medium of the present invention first the recording layer 11 of te is formed to a thickness of 500 a by vacuum deposition on the surface of the substrate 10 of an acrylics thereafter the whole structure is fed to a heating section by a supply belt 15 at a rate of 5 m min the heating section has an arranging distance l 50 cm in which three focusing type ultraviolet lamps 14 of 80 w cm are arranged in this manner the oxide layer 11a of about 100 a thickness as shown in fig3 is formed on the surface of the recording.