Backwards Compatibility - PlayStation 5 Guide - IGN

In a reveal with Wired [1], PS5 Lead Architect Mark Cerny confirmed that the PlayStation 5 would have Backwards Compatibility with all PlayStation 4

Why Sony (Probably) Won't Emulate the PS3 - IGN

PS5: 'Majority of the 4,000+ PS4 Titles' Will be Backwards Compatible, Sony Says - IGN

PS5: Backwards Compatibility Confirmed

PS5 Won't Be Backwards Compatible With PS3, PS2, or PS1 Games - IGN

PS5 and Xbox Series X backward compatibility: What you need to know - CNET

New Sony Patent Has Fans Hoping for PS5 Backward Compatibility - IGN

PlayStation 5 backward compatibility does not currently cover all games

Why Sony (Probably) Won't Emulate the PS3 - IGN

PS5 backwards compatibility could go all the way back to PS1 — here's how

Sony Patent Suggests PS1, PS2, and PS3 Could Be Backwards Compatible Via the Cloud - IGN

Backwards Compatibility - PlayStation 5 Guide - IGN

PS5 vs Xbox Series X: Which Does What Best - IGN