Why do my customers get an error message for a 45-character filename limit when uploading files on a product page?

PRESSERO > *Pressero FAQs
The files that users upload on a product page have a 45 character limit because we are unable to show a preview for files with names longer than 45 characters.  The longer image URL for the previews is not supported by the browser.  Therefore, we limit the names of files in file uploads to 45 characters to insure that we are able to provide a preview for the file.