http://krikzz.com/forum/index.php?topic=7451.msg57906#msg57906 * This is a beta. Expect crashes and unusual behavior on superfx games. * This is a beta version of the sd2snes firmware with support for the superfx (gsu) chip. To install copy the files in the sd2snes/ (firmware.img, fpga_gsu.bit, fpga_base.bit) directory into the sd2snes/ directory on your SD card. You should have a working version of the sd2snes 0.1.7e firmware on the SD card before doing this. - Verify the version says 0.1.7e-gsu-v01 in the sd2snes menu. Do this by pressing X->System Information. - Turn off in-game hooks in the sd2snes menu. They crash several games. - Saving to SD is temporarily disabled. Make sure to hold down the reset button for a few seconds to write a save file to the SD. - PAL games and systems are not well tested. Try a NTSC game on a NTSC compatible console if you have problems. Known Issues ------------ - Games may crash on startup. Power cycle and try again if they do this. Make sure in-game hooks are disabled in the sd2snes menu. - Random graphical glitches may happen on game startup. Power cycle and try again if they do this. - Doom has graphical glitches. - Stunt Race FX may have graphical glitches at the beginning of a race. - Games may not run at exactly the same speed as the original cart. This may improve in future versions. - Not currently compatible with usb2snes or other sd2snes firmware modifications. This will be fixed for usb2snes in the future.