> Dual layer is just that - double sided is another issue. > Dual layer allows the laser to "focus" at different depths to > write/read data. Indistinguishable from magic > And in both cases you end up selling your soul :-) Explain -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist