: Simply "zipping" an MP4 file (using 7zip or WinZip) rarely reduces the size because MP4s are already compressed; you must "transcode" or "re-encode" the video to see real results.

: A more beginner-friendly option that uses hardware acceleration to shrink large 4K or 8K files quickly.

: Reducing the bitrate is the most direct way to shrink a file. A standard 1080p video usually looks good at 3,000 to 6,000 kbps .