Xeno GC Chip for Gamecube 

+ compatible with all regions & all versions 
+ direct boot of DVD+-RW media 
+ supports multi-disc games 
+ supports Action Reply 
+ region free loading 
+ super easy wireless install 
+ no need to remove mainboard 
+ PAL/NTSC region force 
+ installation control LEDs 
+ switchable read setting adjustment / error retry 
+ switchable audiofix 
+ anti-static packaging 
+ very low price 
+ selfbooting homebrew linux discs (thanks to Isobel)