Playstation games take up a lot of space. A real shame. You COULD remove the dummy files inside them if you wanted. (Dummy files pad out the disc image to improve load times on real systems.) But this is a mess. I tried it and wound up with a nonworking game. Thankfully, PCSX-ReARMed supports PSP EBOOTs, which take up less space. To give you an idea, I cut Armored Core down from 500 to 246 MB! You will need a Playstation 1 game, whether you ripped your own or not. ISO, CUE, BIN, PBP, IMG, or MDF files will work. If you have the original disc, you will need to rip it before you start. If your rip has ".ecm" at the end of the filename, you will need to treat it with Un-ECM before you start (simply drag the file onto the program). Step 1 Download Popstation GUI v3.00 Beta. It's supposedly Windows only, but it works perfectly in WINE if you install the Visual Basic 6 runtime (you can do so via Winetricks). Extract the contents of the archive and put them wherever you'd like. Step 2 Go down to "Customize the EBOOT" and uncheck all of the boxes. These are for the PSP menu (icon, sound effect, screenshot, etc). No need for any of that here, it'll just take up space. Step 3 Load your game in "PSX Image File", and select where you'd like it to output the result. If you have a CUE file, make sure to select that. Otherwise, the disc image itself will do. Set the compression up to 9. The better the compression, the less space the game takes up, but the slower it loads. I've found that the loading times aren't too bothersome anyway, so don't worry about that. You can also ignore the contents of the second box. Step 4 Hit "Go" and wait! It'll take a few minutes for a game to be converted. The file should end up as "EBOOT.PBP". Rename it to whatever you'd like, and you're done! The file is ready to be used! Thanks to Wally for his help!