So I just fixed my GameCube after having the disk reading error for about one and a half years, and here is a video I made of me testing it out, playing Geist on it. I am so glad I got it working again, it's alive! I also provided information in the video on how I fixed my GameCube so that it reads disks again, in case anyone else here is having problems with their GameCube. Here is the video:

http://www.youtube.com/watch?v=5lOO3akQSls