All right, hopefully I'm not too late.
Where I got my stuff, they're in .ecm files.
Most of them were .bin.ecm files.
All you need to do is get an ecm to bin converter and convert them, then rename the data.bin to whatever the game is. The other files shouldn't be necessary.
Good luck.
Also: Most games won't run well if not on CFW/.cia
In the retroarch thread, they recommended changing the audio sync off, which does make a significant fps boost.
Without CFW, games will run about 12-15 fps, with the audio desync and frameskip on 1, it runs more like 17 fps iirc. But with cfw and the .cia pcsxrearmed, it runs more like 30-60 fps.