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I have an incomplete MP4 file. It contains audio only, in AAC. Is there any tool that would fix the file so I can play the partial file?

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maybe one of these videohelp.com/tools/sections/video-repair-fix –  Jader Dias Jul 16 '11 at 18:00
    
I tried filerepair1.com and it didn't work –  Jader Dias Jul 16 '11 at 18:07
    
the free version of qtatomviewer didn't work –  Jader Dias Jul 16 '11 at 18:26
    
did you tried any mp3 cutter/joiner aplication??? I should try to open it and cut off the last media second. Take a look at here: baixaki.com.br/download/mp3-cutter.htm –  Diogo Jul 16 '11 at 22:51
    
@Diogo_Rocha I tried this one mp3cutter.org and it didn't work –  Jader Dias Jul 16 '11 at 23:23

2 Answers 2

up vote 1 down vote accepted
ffmpeg -i in.mp4 -c copy out.aac
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Try opening it in VLC Player or something that would give you verbose error messages. If the error is something like

[mov,mp4,m4a,3gp,3g2,mj2 @ 0x9000a0] moov atom not found

then you are out of luck. You need to have the beginning and also the end of the file, because the important headers are stored there. Many Torrent clients have the option to prioritize downloading t

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