: A free, open-source transcoder. You can use its "Web Optimized" checkbox and adjust the "Constant Quality" (RF) slider to reduce file size.

"Ruks Compressedmp4" does not appear to be a widely recognized mainstream software or service. Based on common online naming conventions, it likely refers to a specialized or a creator-specific preset used for sharing highly compressed video files .

These sources often use specific encoding settings (like ) to significantly reduce file sizes while attempting to maintain watchable quality. Target: Reducing a 1GB file to under 100MB.

If you want to achieve similar results yourself, the following tools are the industry standards for compressing MP4 files:

Always ensure the file extension is strictly .mp4 and avoid running any attached .exe or .bat files.

Could you clarify if this is a you found or a software error you are seeing? Knowing where you encountered the name will help me give you more specific details.