wow....i forgot that was even a thing to be honest. we used to do it everytime before putting it inside, that feels like lightyears away now
i rememebr when we had discs and we didnt have to blow on them, we just ended up scratching the gamecube discs lol....
Oh I remember disc cracks, they are another story. It's only a small one...
Sega CD would actively destroy games as you played them. The lens was offset by just that much.
My poor copy of Sonic CD paid the ultimate price for its awesome musical score.