Earlier quoted context omitted.
Yet the obscure forgotten stuff is still playable if you kept a copy of the disc. Those games didn't need a community to preserve them, because they were not designed to be ephemeral like live service games.
It's not like they were designed like that on purpose. It was a limitation of the technology of the time. If they could've made as many live service games back then, they would have. This comparison is also unfair for a couple more reasons: - It ignores the fact that when a game was released on CD back then... that's it. No updates. No patches. Nothing. You break it, that's it. Game ending bug that corrupts your save…
Not folk remedies, you can take it to a game store and most have the equipment to resurface the CD.