How to play PS2 and PS3 games on PS4? Sony PlayStation backwards compatibility explained - Daily Star
PS5 Rumored To Have Backwards Compatibility For PS1, PS2, PS3, and PS4
PS4 Backwards Compatible GLITCH DVD PS2 Disc Sonic Heroes (PS2 Game On PS4) - YouTube
PS4 PS3 PS2 PS1 Backwards Compatibility Update - For PS5 ! PS5 Release Date Saga ! - YouTube
PS4 Now Has 500 Playable PS2 Games via Jailbreaking - MP1st
How to Play PS2 Games on Your PS4 - whatNerd
PlayStation 5 backwards compatibility for PS1, PS2, and PS3 games could be provided by a revamped PS Now service with upscaling capabilities - NotebookCheck.net News
Is the PS5 backward compatible? - Android Authority