Hello, this only works on images, and im not sure if it will work with all files (i only did this with two files,both games.)Oh and of course, if its not verified then the chance of this working is even slimer becuase the file might be fake any way and this is for fixing corrupted files not false ones.
Well here it goes
Use something like Daemon tools or Alcohol 120 (or any other virtual driver) and explore the Image. Copy the contents of the Image. Now, create a folder and paste the contents of the image you just copied into it. If it says that it could not copy from driver of something along that line then thats a corrupted file. When you run into one of these, go back into your Image and create a Text document named "Corrupted Files List" (or what ever you feel like naming) and paste the file name and directory into it. You may have to do it more then once so keep it open. Go back and pick up where you left off in copying in pasting (becuase once you run into a corrupted file it stops pasting anything after that corrupted file.) After you have finished copying the entire contents of the image, Rename the image, and redownload it. When the image is done downloading, simply open the text file entitled "Corrupted Files List"(or what ever you named it) and copy and paste the corrupted files into the first image that you had. This should fix what ever was corrupted, if you find you can't tranfer a file from the second image to the first than that file is corrupted in the second one too, and you have to get it from another image.
Hope this helps
Please be considerate enough to make a back up Image so you can restore it once you have finished burning it so other people may be able to download it from you
[Edit 2 or 3..:] Sry if its confusing but as you can tell, i'm not very good at explaining things.