Super Smash Bros. Brawl error when starting it from USB Loader on Wii

I downloaded my Super Smash Bros. Brawl ISO from Romulation, and it takes hours to finish up. I have done it four times, between two computers so I'm sure I've downloaded it properly. I don't know if the download is corrupt, or if my USB Loader is bugged up. I just installed the Homebrew Channel two days ago and installed the USB Loader the same day. I did delete the files from the SD card after, but then I dragged them back after installing something else.

The reason I need to install an ISO instead of loading information from the game disc is that my Wii won't respond to CDs anymore and after Nintendo refused to help me, I've had to take matters into my own hands and I'm struggling to do so on my own. Any help would be greatly appreciated.