| 摘要 |
<p>An optical data recording and storage medium including at least one reflective layer formed from a copper alloy that contains, in addition to copper, about 0.1 to about 3.0 wt. %, based on the total weight of alloy, of samarium (Sm) and may further include from about 0.1 to about 5.0 wt. % titanium (Ti).</p> |
