: A "video" file that is only a few hundred kilobytes is almost certainly a script or malware.
Compare the SHA-256 hash of your video65.zip against known good versions. If you have a trusted copy from a legitimate source, any mismatch indicates tampering. video65.zip
ZIP is a lossless process, meaning it preserves every single bit of data. Because video files have already removed "unnecessary" data to become small, a ZIP tool often finds very little left to optimize. 2. When Zipping is Actually Useful : A "video" file that is only a