How to Save PS1 Games on PS3: 6 Steps (with Pictures) - wikiHow
How to find over 200 PS1/PSX games on the PlayStation 3 store - YouTube
Playing ps1 disc on ps3 slim (also show case all games and asking ps4/5 users who own ps3) : r/PS3
New PS1 Classics Can Be Bought Off the PS Store | Push Square
PS1 Downloads on PS3, Or: Firmware Updates Galore | WIRED
All Psone Classic Games on PS3 before PlayStation Store closes! - YouTube
How To Find ALL PS1 / PS2 / VITA Games on the PS3 Network! EASY - YouTube
Easiest Way to Locate PlayStation Plus Classics Catalog Games You Purchased on PS3/PSP? | ResetEra
Did You Know? Some PS1 Classic Games Are Currently “Hidden” On PS3's Digital Storefront | by Jonathan Hawkins | Medium
PSOne Game You Can't Play Debuts on Vita PS Store | TIME.com
The 25 Best PS1 Games Of All Time - IGN
PSOne Classics Buyer's Guide -- PS3/PSP Store Apocalypse Edition - Hey Poor Player
Just a reminder that you can still buy the Original PS1 Klonoa game digitally AND legally on the PS3 Store for only 6 bucks!(only available in the USA and JP store) :
All PS1/PSP games are now downloadable on the PSVita - Hackinformer
Resident Evil Director's Cut and more PS1 classics playable on PS4/PS5