The files are also safe, as far as I've been able to tell. I've downloaded over a thousand files from various file hosts that have been linked on JavLib. I usually scan the files with Windows Defender after downloading just to be on the safe side, but not once has it detected a threat.
I've read that while it's possible to hide an .exe file within a video file, it's not a very effective/efficient/worthwhile way to spread malware so it's uncommon.