I need your help. I have a soft modded xbox. Recently, while ftping some roms into my hdd, I ran into error 21. I have scoured the internet looking for a cure to this problem. I have downloaded evox installer and aid 3.0, but neither worked. I'm still able to play original games but not back-ups. Also, I have gone to different forums and read much about what this error means. I'm not a computer savvy guy and taking my xbox apart is not an option. Please, if anyone out there can perhaps send me a working iso installer ready for burning to fix this problem, I'd greatly appreciate it. Take care ya'll.