Nippy User Since 2015 Mp4 Fix 'link'

Get-ChildItem *.mp4 | ForEach-Object ffmpeg -i $_.FullName -c copy -movflags +faststart "fixed_$($_.Name)"

built-in "Convert/Save" feature to re-encapsulate raw data into a fresh container. While originally meant for format conversion, it frequently acts as a "glue" for minor corruption. The Reference File Technique: For more severe cases, tools like Recover MP4 nippy user since 2015 mp4 fix

A browser-based option if you don't want to install software, though it may have file size limits. Get-ChildItem *