GxGeo vs NeoCDRX

GxGeo is a free Wii-family emulator for Neo-Geo AES and MVS games. It is a port of the open-source GnGeo emulator and is licensed under GPLv2. Supported platforms listed are Wii, vWii mode on Wii U, and Wii Mini. The project is described as an early version with some bugs. ROMs larger than 25 MB do not work because of memory limitations, although some ROMs can be modified to run. Installation requires extracting the ZIP to an SD card and placing zipped ROMs and BIOS files in /sd/gxgeo/roms. The instructions require 000-lo.lo and sfix.sfx, and describe country and system BIOS files; uni-bios.rom can substitute for a country or system file. Play is supported through a GameCube controller or Wii Remote. A GameCube controller in port 1 takes priority for player 1, while the Wiimote controls player 2. Downloads are linked through Google Code, Homebrew Browser, and Open Shop Channel. Open Shop Channel lists version 20101119.

NeoCDRX is a free homebrew emulator for Neo Geo CD and CDZ games on GameCube, Wii and Wii U through Virtual Wii. It supports region settings for USA, Europe and Japan, which provide different languages and can affect some game content. The listed processor cores are Z80 3.6 and M68000 3.3, and audio controls include a three-band equalizer for music and sound effects. Supported controllers include Wii Remote, Wii Remote Plus, Wii Remote with Nunchuk and GameCube controller. Media options include SD/SDHC, USB and DVD, plus GameCube options WKF and IDE-EXI V1. Virtual memory card saves can go to SD or USB, or to a physical GameCube memory card. Setup requires a Neo Geo CD/CDZ BIOS file named NeoCD.bin in NeoCDRX/bios. Each game goes in its own folder under NeoCDRX/games, with an mp3 subfolder for music. Wii and Wii U Virtual Wii installations are packaged for Homebrew Channel; using the Wii version requires a way to run unsigned code. The README describes the project as GPL open source, while GitHub lists LGPL-2.1.