I understand this, but my point is that they are 9 years old (going 10 sometime soon) and they still work. So the 2-5 years lifespan seems a bit alarmistic.
FWIW, I kept them in the normal CD case in a normal temperature room. The brand used are very different (Mitsui, TDK, Kodak, Sony, Princo, no names, ...)
FWIW, I kept them in the normal CD case in a normal temperature room. The brand used are very different (Mitsui, TDK, Kodak, Sony, Princo, no names, ...)