>>713016990
There's a good Gamasutra (fuck it, I'm not calling them Game Developer) about preservation.
Sony elaborated on their preservation techniques there.
https://www.gamedeveloper.com/business/where-games-go-to-sleep-the-game-preservation-crisis-part-1
https://www.gamedeveloper.com/business/where-games-go-to-sleep-the-game-preservation-crisis-part-2
https://www.gamedeveloper.com/business/where-games-go-to-sleep-the-game-preservation-crisis-part-3