What material are cds made from.
what are you using it for? cheaper may not be the best thing and do you really mean PVC or PPVC? (white or yellow)
a mirror is a reflective surface, it can be anything from a piece of glass with a layer of reflective silver to the surface of a still pond many elements and compounds form and grow crystals, not all of which are reflective the two dont seem to be related in the manner you are asking.
