[0062]FIGS. 12A and 12B represent two different embodiments of fluorescence detectors of the invention. [0063]FIGS. 13A, 13B and 13C are a schematic diagrams of a multiple loading device for the disk. [0064]FIGS. 14A through 14F illustrate laser light-activated CD-ROM capability of the disk of the invention. [0065]FIG. 15 is a flow diagram of the processor control structure of a player/reader devi