Missing music

So here I am ripping my CD’s into iTunes and blogging because I’ve got nothing better to do while I’m waiting, and half of them appear to have evaporated. So far I’ve found about 15 empty boxes. I know its been a while since I listened to a lot of them but where the hell are they? Did they feel unloved? Get bored? Take a slow boat to China? Am I going to open a cupboard door in the near future and be felled by a cascade of naked discs?