Oh, true, but back then game companies would sell you those single disks you needed. My copy of Baldur's Gate 2 was missing one that I was able to replace for a few bucks.

In hindsight, I kinda miss the awesome customer service that used to exist.

Idk a tiny almost imperceptible scratch causing you to retry installing 3 or 4 times might a contender. At least the missing disk is a clear error.

There's a circle in hell for game publishers that only wrote "disc 1" on a CD or DVD (or floppy, back in the day) and not "disc 1 of 3". I think it's the one where they have to wade forever in shit.