Commented Issue: Games causes error on load after being copied. [1609]

ok, ive formatted my usb stick to fat32, and then formatted it with WBFS, so everythings good a gravy. I backed up my game to the stick via usb loader through the homebrew channel, and it loads from there ok. Then i extracted the iso to my pc using WBFS and deleted it off the stick. Later on, i copied it back to the stick using WBFS and now when i load it via usb loader, a message pops up saying theres an error, i need to eject the cd and restart the system. Happens with every game I use. My USB sticks not huge!! I need to copy them to my PC for backup. Any ideas?
Comments: ** Comment from web user: daniellaval **

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