International Symposium on Optical Storage 2000 (Shanghai, China)/Shang-Hai Kuang Hsueh Ching Mi Chi Hsieh Yen Chiu So/Society of Photo-Optical Instrumentation Engineers/Qing Hua Da Xue (Beijing, China)/Guo Jia Zi Ran Ke Xue Ji Jin Wei Yuan Hui (China)/Hou, Lisong/Gan, Fuxi