While "mnop_compressmp4" is not a widely known commercial software, scripts with similar naming conventions generally offer:

If you are looking to perform this task manually or via a script, the underlying command usually looks like this: ffmpeg -i input.mp4 -vcodec libx265 -crf 28 output.mp4 Use code with caution. Copied to clipboard Popular Alternatives

: The gold standard for open-source video transcoding and compression. [1, 3]

If you are looking for a user-friendly tool rather than a custom script:

: A powerful, free tool that provides a GUI for FFmpeg functions. [2]

: A setting (usually between 18 and 28) that balances quality and file size. Lower numbers mean higher quality. [2, 3]

: The ability to compress multiple videos in a single folder automatically. [1]

: Has a "Convert/Save" feature that can compress videos in a pinch. [3]