An objective lens is configured of a first crown-glass lens and a second flint-glass lens, whereby it can exhibit substantially identical optical properties at a plurality of recordingreproducing light source wavelengths, particularly, in both 650 nm and 405 nm wavelength bands. In an embodiment, metadata can be used to define readable andor writeable regions of a multi-dimensional data store. Such methods find use in producing biodegradable thermoplastics in plants and other organisms. The orifice is in fluid communication with a passage through an elongated stem connected to the body. Further, the method includes transmitting, at a target transmission time, the message to one or more of the plurality of subscriber stations.