A new mask system for a thermochromically induced super-re solution (TSR) r
ewritable disk is proposed. In this system which consists of a high-sensiti
vity mask layer and a low-sensitivity mask layer, TSR effects are obtained
in both read and write processes. At the high-density recording on a Ag-In-
Sb-Te phase-change rewritable disk, cross-talk and cross-erase are improved
.