I've also thought about spraying on polyurethane. Polyurethane probably has a similar index of refraction as the polycarbonate discs, and as it dries, the surface tension will probably cause it to fill in minor scratches and dry with a relatively smooth surface, which can be buffed or polished with fine steel wool, if necessary. Any thoughts on this ?
Lip balm for CD scratches?
I was browsing through my wifes First magazine (bathroom reading of course) and came across a page extolling the many uses of lip balm, with one of them being for filling in scratches on CD's and then lightly buffing afterwards. Anyone ever try this? It certainly sounds easy and cheap enough.