downloaded 2 ps3 roms and neither of them work.

i downloaded lego marvel super heroes 1 and whenever i try to open the file with rpcs3 it says no bootable content found. i am also having issues with littlebigplanet1 where it doesnt get past the loading screen and it just crashes. i have 2 bootable games that work and i have already completed. i check rpcs3's website and all of them are playable.

"something funny"