| http://www.w3.org/ns/prov#value | - The thickness of the magnetic recording medium of the present invention, i.e., the total thickness of the nonmagnetic substrate 2, the surface layer 10, and the back layer 20 of FIG. 1, preferably ranges from 3 to 10 ??m, more preferably 4 to 9.5 ??m, particularly preferably 4 to 9 ??m.
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