Thanks for that. Are you suggesting then that if I start over with a formatted HDD then rip (install) a game using C.U.L. that I should not see the errors? Since I took the long way around and ripped iso's (long story - this was before I had a USB HDD), I was using Wii Backup Manager to transfer them to .wbfs format. Does WBM not automatically scrub on the way to .wbfs?
This could get hairy in a hurry, since I already have (presumably) clean iso's which my FAT32 drive can't handle. I'll figure out the best way to get the files off and back on. I just thought it might be something worse like an IOS or cIOS problem (even though I'm pretty sure I brick-proofed it). But if I can't rip everything with C.U.L. (e.g. discs are too scratched) will I need to look at WiiScrubber in addition to WBM, or should that not be necessary?
"Macs are the Perfect Computers," said the Perfect Idiot.