| 摘要 |
A magnetic recording medium having little head staining and favorable dropout and error rates when recording after extended or high-temperature and -humidity storage. The medium has, on a nonmagnetic support, a magnetic layer of coated ferromagnetic metal powder containing Fe and binder. The ferromagnetic metal powder contains at least Al, Co and Y, and, respectively, has ratios of Al to Fe (Al/Fe) ranging from 5 to 15% by atom, Co to Fe (Co/Fe) from 1 to 25% by atom, and Y to Fe (Y/Fe) ranging from 0.5 to 5% by atom. Si and Nd either are absent or are each found in an amount not more than 0.01% by atom with respect to Fe. The magnetic layer contains a fatty acid and a fatty acid ester, the fatty acid ester being a fatty alkyl ester compound having an acid-hydrolytic speed not more than 0.03/hour
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