the guy told me he is using the zen8 every day, ..............
next time i will tell him it is common sense to keep in the dry cabinet.
according to what i asked OC and Han Sounds, copper will turn green, it's just the matter of how the bare copper is being protected by the plastic insulator.
The ZEN cable is Han Sound Audio's first cable in their refreshed series of cable products, and is made of single crystal copper in OCC multi-strand LITZ configuration, with DuPont Kevlar 200 wire core for maximum strength without detrimental effects to flexibility and insulated in UV resistant ultra-soft PVC.