I have jailbroken PS3 (1TB HDD) and FF3 is the one that I'm missing too. Got FF1 through FF XIII - Lightning Returns but FF3 does NOT exist for PS1/PSX (Possible remake coming but don't quote me on that )
I'll be installing Retroarch/emulator and using Snes version. Got ALL "Tales of" games but can't get FF3 for PS1/X.. Never ported over for some reason.
Stop behaving like 5 year olds and play nice!!! I'll smack your bottom if you play up anymore. (Hang on - Scrub that - some of you may like being spanked!! lol)