| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an information recording medium which can make CAV recording, wherein the reproduced signals does not deteriorate even after rewriting data for 100,000 times or more. <P>SOLUTION: This information recording medium has a base plate, and a recording layer to record information with phase changes made by irradiation with a laser beam. Further, it has a recording layer which contains at least Ge, Sb, Te and Bi and that contains Bi in the amount of 1-9%. <P>COPYRIGHT: (C)2006,JPO&NCIPI |
