I backup my Gamecube games by SuperDumper 1.3 on the Wii.:thumbsup:
So if you don't have a any of the tools that were listed before, a softmodded Wii can do the trick.
Last edited by HEX1GON; 12-06-2011 at 08:28 AM.
for NGC and Wii discs, it is also possible to use a wode jukebox (to find out about it, simply google it). It is an electronic board for the wii console, that works as a man in the middle between wii disc drive and wii mother board. There is a ripping mode so you simply have to plug a USB device, insert the disc and wait for the ISO. Not cheap but efficient.