| 摘要 |
A dual-layer magnetic recording medium including a non-magnetic substrate having a front side and a back side, a lower support layer formed over the front side and a magnetic upper recording layer formed over the lower layer, wherein the magnetic layer contains magnetic metallic pigment particles having a coercivity of at least about 2000 Oersteds (Oe), and a binder system for the pigment. The magnetic recording medium exhibits a squareness ratio greater than 0.84, and a front coating Wyko Ra (average roughness) value of less than 5.5 nm, preferably less than 4.0 nm, wherein the magnetic medium has a BBSNR of greater than 11 dB at 151 kfci.
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