These tools ignore the file system index entirely. They scan raw sectors for MP4 headers ( ftyp ), AVI headers ( RIFF ), and AAC syncwords.
curl -r 1000000- -o partial.mp4 http://example.com/titanic.mp4 Then concatenate with the original using cat partial.mp4 >> broken.mp4 , then run FFmpeg repair. If you have multiple corrupted MP4, WMA, AAC, or AVI files, save this Bash script as fix_media.sh . Titanic Index Of Last Modified Mp4 Wma Aac Avi Fix
Have your own war story about a corrupted AVI or WMA file? Share it in the comments below. And remember: always keep a backup of the original last modified timestamps. These tools ignore the file system index entirely
ffmpeg -i corrupted_audio.aac -f adts -strict experimental fixed_audio.aac Or extract to raw AAC then re-wrap: If you have multiple corrupted MP4, WMA, AAC,
ffmpeg -i corrupted.mp4 -c copy -movflags +faststart fixed.mp4 This moves the index to the front, making it resilient to future truncation.
# Reset last modified timestamp to current date to avoid index mismatches touch "$base_fixed.$ext" done
touch -t 202501011200 fixed_titanic.avi Symptom: Windows Media Player says "Cannot play the file because it is corrupted."