I just dug my box out to grab the joystick for a mess about and noticed there was what looked to be mold growing on the large laminated printed joystick on the front, closer inspection there was also some on the big red laminated "64 GAMES included" logo and a couple of specs on the back...
It's been kept at room temperature here, (in a wardrobe in our bedroom) but it's sitting in the plastic bag the box came with... I suspect the plastic bag might be slowly reacting to either the ink colour or the lacquer where it's been touching, or maybe the box saw a lot of moisture before we got hold of it and the plastic is making it sweat?
The plain cardboard areas are fine, it's only effecting the glossy laminated printed areas.
If yours is being kept in it's original plastic bag that it came in, (I only used it to keep dust off) then keep an eye on your own just in case it happens to yours! I might give up on the plastic bag idea and use a cardboard box as dust protection instead.
This is "NOT" a photo of my box. You can only just about see it in certain light so a picture will be of no use if I take one. I just added this example to remind you what the face looks like.
NO NO NO don't keep it in the bag it can cause condensation to build up that why you see mold,like on a window,Mold is in the air all the time,you just can't see,i know cos I had a flood in my flat and it was everywhere cos of the water on the floor.It eats cardboard and leather too ... ,it destroyed my Leather jacket,I can show you if you like,had to take a photo for it cos compensation.
This was(in 2013)the back of my chester drawers,Can't find my jacket.Thats mold.
WOW! Thankfully mine was nothing like that and the actual cardboard it's self was fine, spotless even. The specs were only on the shinny stuff and I managed to remove it all using just a drop of windowlene glass spray cleaner on some kitchen towel, with repeated gentle rubbing it slowly came off. Good as new for now.
We had that cold spell here in the UK a number of weeks back and before that the Beast from the East, (Snow) so the boxes may of taken a drop of moisture in transit from China.
No matter what you store for any period of time, it needs air flow, or condensation will settle and you'll get damp/mould. Don't keep things in bags unless you can be 100% sure their's no moisture in there.
You should see my box for my Mega Drive 32X,the water damaged the too,I had to throw away a lot of stuff,like I big wardrobe,it started to claps.It took the Council a year to sort the leak out.had to dig up the back of the flats where I live,It was a drainage pipe from the roof,so water would come in to the flat very time it rained,there was fat in the pipe blocking it and there shouldn't of been cos its not connected to the waste pipe.Took them a week to fix.It was the worst days of my life.
I had to breath all the mold in too,they wouldn't move me so had to live in it.
I am sure you heard of Haringey Council.Baby P died just down the road from me.They don't help anyone.
That's bad man! Makes my breathing go funny just looking at it! I would of begged my oldies or friends to store my retro hoard and other valuables until it was fixed but yeah we forget about stuff in storage, out of sight and out of mind. Somethings can't be replaced as they can't be bought new any more!
Maybe you did but I would of been tempted to phone the BBC as that Inside Out program has cover this sort of thing and got the Council to get it act together a lot sooner than it might of otherwise. I'm down in Hampshire and would of missed any local news you might of had as we get BBC South Today.
I know that this might get me laughed at, but what about these tiny packs that come with almost every electronic device, in the box? Aren't these supposed to keep things dry for long term storage? You know what I mean. These things that have writings like "Do not eat" on them. No idea what they're called. But you'd be able to buy these someplace.
I've had a couple of things mess up from long term storage, not being used for a good number of years. Caused by the bags they use in the box. Most packaging must only be designed for the short term, and yeah in most cases this is normally all that is required.
Both in storage for about 10 years before it was spotted: Fanatec steering wheel, the rubber on the wheel it's self became sticky which was something to do with the plastic bag it came in. Rubber pads/feet on the underside of a Yamaha PSR550 keyboard melted which was caused by the polystyrene type dust bag it came in.
Clear Blue N64 console, (new & never used) the plastic of the console became less transparent, blue has gone more green and the white base started to change slightly off white/yellow on the controller. Again may of been caused by the plastic bags it came in.
You could argue it was cheap the C64mini it's self never came in a plastic bag to keep dust of it inside the box, but then again if kept in storage for many years a bag could make it change colour like my N64!