can i play psx games on Ps3?
All PS3 models can play PSX (original discs or downloaded from PSN store) and PS3 games.
Certain PS3 models (60GB and early 80GB models) can play PS2 games through emulation. Only the PS3 60GB NTSC model can play all PS2 games by hardware.
All PSX games on PS3 are also playable on PSP through Remote Play.
Burned PSX/PS2 games are not playable on PS3 by regular methods (unless you want to open your PS3 to use the swap trick).
Not all PS3 yet
On PS3 40GB model You can't play PSX/PS2 games, but this will be possible in the future (with future upgrade).
I grabbed an old 80gb model because of backward compatibility after all its a feature that you have to pay for and love my ps3 that plays almost anything I throw him..