Assassinator Wrote:Snes9x should have almost perfect compatibility. although they should've probably attempted to port Zsnes, as that has better speed, and equally good, if not better compatibility. (i think i read 99.8% or 99.98% compatibility some time ago from somewhere)

ZSNES is written mostly in x86 ASM, so is very difficult to port at all.
Snes9x is written mostly in C++ so is much easier to port.

Assassinator Wrote:And Sony's emulator??? What do u mean by Sony's emulator... Sony would never release any emulator for their own console...

Yes they do :P  Like they made the PSX emulator for PS2.
They wanted people to buy PSX games from the PS3 store to use on the PSP.  The PSX emulator got hacked though, so now you can convert your own PSX images to be played on the PSP.

Assassinator Wrote:Anyways, how do they emulate the PSP at full speed anyways... That seems a bit surprising to me. Does it emulate it any good, i mean if u turn all the settings in ePSXe to minimum, then u can run it on a weaker computer, but it'll look horrible. How does PSX emulation actually look on the PSP?

There's no quality settings.
PSP uses a MIPS CPU, just like the PSX, so the CPU instruction emulation layer doesn't have to be that complex, unlike a MIPS » x86 translation layer (used on PC).
Sony's emulator would be simple, obviously :P