Question About Bluray Case Moisture/Mold

[BunyipPouch]

So this might be the wrong forum (if it is, please point me to the right place) but I was looking for advise/help about something that I can't get out of my head recently:

Moisture/Mold In Bluray Cases

Long story short: About a year or so ago we had a water leak in a wall in my house, we didn't notice for a while because the wall was covered by a shelf, and it rotted the wood and flooring by the shelf. We eventually got it fixed, dried out the flooring and wall and got it replaced. The problem: This wall was very close to where I keep my movie shelving.

About 2-3 weeks ago, I had a kind of epiphany: What if the water leak/moisture got into the movie cases? I've kind of been stressed out with borderline panic attacks thinking this could have ruined my movies, I'm an idiot and hadn't thought of it before. Should I be replacing all of the cases?

I've been going through cases to see if there's anything noticeable, the discs all seem to be fine, but I don't really know what to look for. For example, is this normal?:



The kind of little bubbles inside of the case. It's pretty common in a lot of these cases, but I don't have a comparison. Is that something that happens to most cases after a while, or could it be because of the wall leak? And is it mold or just harmless moisture bubbles? I don't even know if mold can grow in plastic cases. It's not in a lot of cases, but some have it (a small minority of them, but then again I've bought a lot of new films since the leak so it's hard to say which have been exposed the longest). Then again, I don't even know what mold in a bluray case would look like.

It's not something I ever paid attention to pre-leak so it's possible that stuff like that was there all along and has nothing to do with the leak.

Other examples of some of the more-noticeable ones, a lot of them there's nothing noticeable:









Thank you to whoever can help or give me reassurance. It would be greatly appreciated.

Half of me is like "this is nothing, it happens to a bunch of blu ray cases and means nothing, the disc is fine, just random harmless moisture bubbles" and the other half of me is like "everything will be ruined if i dont switch everything out ASAP and this might be mold and it'll spread to more cases and could ruin the discs", and it's driving me a bit crazy the past couple weeks.