ffmpeg -i Titanic_broken.mp4 -itsoffset 1.5 -i Titanic_broken.mp4 -map 0:v -map 1:a -c copy Titanic_synced.mp4
Before attempting any repair, check the file size. If your Titanic.mp4 is 300MB but should be 4GB, you do not need a repair tool; you need to re-download the file.
# Titanic Index Fixer Script $files = Get-ChildItem -Path "C:\Corrupted_Videos\" -Include *.mp4, *.avi, *.wma, *.aac -Recurse