First I just download PSP MAME4ALL v4.9r2 Hires by TTYman - 16112007. I extracted the folder and in it there is another 4 folders, which I've listed below with what they have inside. Folders: psp_mame4all_v4.9r2: folders: cfg, roms, data, hi, samples and Eboot.pbp psp_mame4all_v4.9r2-noneogeo-nocps1: Eboot.pbp psp_mame4all_v4.9r2-usermode: Eboot.pbp psp_mame4all_v4.9r2-usermode-noneogeo-nocps1: Eboot.pbp It also has document folders and two DAT File folders. What do I do to get MAME working properly? My next question is, I've gotten 3 Roms (Street Figther III, III-2 and III-third strike), when downloaded they are a WinRAR file. When I extract it it turns into a folder with the game name and 5 or more files inside. How do I make it a working Rom? I had this same problem with SFA3 for GBA, it was a WinRAR file which I tried to play with GBA emulator gpSP. It read on the screen but wouldn't play when I selected it. Instead it would send me back to the my XMB screen.