Riivolution is an on-the-fly game patcher for use with retail discs. It allows users to place content on their SD or USB devices, which will be read by the game during regular play.
It can be used for custom textures, music, levels, memory patches, game translations, and more!
Changelog
Code:
v1.02
March 28th, 2010
Disc file addition
More memory patch improvements
Network hostname lookups
Network stability improvements
Games will now connect to the network alongside Riivolution/RiiFS
Foreign character support in XMLs (Latin-1)

v1.01
March 22nd, 2010
Memory patch improvements
Mounted disk improvements
Added network support

v1.0
March 20th, 2010
Initial release
Source: Riivolution - WiiBrew