Definitions for "Reflectivity"
3M (a registered trademark of 3M Company) reflective material enhances visibility during low light hours.
Amount of light reflected back by the surface upon which the bar code is printed.
Property of illuminated objects to reradiate a portion of the incident energy.
The mental skill of giving careful consideration to visual configurations which are already present in perception. Distinguished between this quality and the more usual tendency to verbalize and rationalize unformed ideas, present only as mental states, is vital to the development of an effective visual thinker.
Keywords:  variances, multi, disc, able, media
It is the variations of reflection from the reflective layer at different parts of a disc. Multi-read drives are being manufactured to be able to read different types of media because of variances in reflectivity in CD-RW, CD-R and the like.