Premium+ Select disk image with '~' in the filename

[ChickenMan]

So when you originally shortened the long file name to a 8.3 name I assume you used the ~ to fill in spaces or whatever. I would have suggested to use the - (minus) sign instead and thats probably what you need to do to rename the files manually. I use Bulk Rename Utility when renaming multiple files., get it from https://www.bulkrenameutility.co.uk/Download.php