| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a magnetic recording medium having satisfactory RRO (repeatable run out). <P>SOLUTION: A stamper has three-dimensional patterns in a dummy region, and the three-dimensional patterns have a repeatable run out of 1 nm or less between the fifteenth order and 40th order, when the rotational frequency is the first order is set as the reference. <P>COPYRIGHT: (C)2010,JPO&INPIT</p> |
