DrPete4155 - Can you tell us how you downloaded them, for example, did you go directly to the Rapidgator link and download -- or did you use a downloading tool, such as jDownloader?
One of the reasons this is important, I often see issues w/tools like jDownloader (also w/browser extensions) when they split the download into multiple parts.
In this situation, downloading a single-threaded/single-chucked download directly can often resolve the problem.
Also, thanks to [Login to see the link] for investing time to download and test, that is very generous!