I have downloaded Ubuntu 12.04 desktop LTS (701 MB). I tried it in Linux Live USB Creator. After adding this file, it shows that it is a corrupted file. But I didn't get any error while extracting it to the USB stick.
I got error while installing. It shows "Error 5 Input/Output". Please tell me how to fix the Corrupted file. I cannot download it again, because it took 3 days to download for my system.