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Thread: mp4 repair?

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  1. Member
    Join Date: Aug 2006
    Location: Finland
    Search Comp PM
    Hello to everybody.
    I would need a help with mp4 file,which is possible damaged.I recorded a video by my mobile.It stopped because an error.It was saved in right way - there is a file,which is 106MB.But it doesnt play in my mobile even in my computer.Ive tryed VLM and other programs,but nothing.Do you know if there is any possibilities to rapair it or play it in some player?
    Thank you very much for your help and suggestions.
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  2. Go to the TOOLS section ogf this site. Go to Video Repair/Fix section. The freeware tools do as good a job as the other tools no-free tools as per my experience. The best is still the first one called DivFix V1.13
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  3. Member
    Join Date: Feb 2004
    Location: Australia
    Search Comp PM
    You could try one of these tool's

    http://www.videohelp.com/tools?tool=MP4Cam2AVI

    Convert to avi for editing

    Or super to any format ... even the same ... super has the ability to break through problem's where other tool's fail .

    When done , check if the new file play's ok .
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  4. Member
    Join Date: Aug 2006
    Location: Finland
    Search Comp PM
    unfortunately...ive tryed MP4Cam2AVI - ERROR moov atom not found.
    And SUPER made nothing.Only errors.Any other ideas?
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  5. Member
    Join Date: Dec 2004
    Location: Australia
    Search Comp PM
    You could try mp4box or mp4creator. Also maybe Haali or Gabest's splitters can parse it?
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  6. Member
    Join Date: Aug 2006
    Location: Finland
    Search Comp PM
    Ive tryed yamb with mp4box and with mp4creator.It said to me, The file is truncated.Mayby i dont know what to do with yamb...culd you explain it to me?Ive tryed to export it to avi.Here is the message:
    [14:51:40] : Exporting & Converting stream...
    [14:51:40] : Info: atom type pvmm is unknown. Please check usage
    [14:51:40] : Info: atom type etag is unknown. Please check usage
    [14:51:40] : Info: atom type pvti is unknown. Please check usage
    [14:51:40] : Info: atom type dnld is unknown. Please check usage
    [14:51:40] : Info: atom type cver is unknown. Please check usage
    [14:51:40] : Info: atom type rand is unknown. Please check usage
    [14:51:40] : Exporting failed.
    Im going to try Haali....
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  7. Member
    Join Date: Aug 2006
    Location: Finland
    Search Comp PM
    Which program is Haali used with?Could you explain it to me,how to use it?
    Sorry for my stupid questions,but im doing it for firs time....
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  8. Hello,

    Sorry for the late reply, but the solution to your problem wasn't created until 2008:
    It's Treasured, a free Mac application that diagnose and preview almost any corrupt movie file.


    Regards, BJ

    You are in breach of the forum rules and are being issued with a formal warning.
    / Moderator Baldrick
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  9. you dredged up a 3 year old post, just to sell your mac software/video service to a pc user?

    spam!
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  10. I'm a MEGA Super Moderator Baldrick's Avatar
    Join Date: Aug 2000
    Location: Sweden
    Search Comp PM
    AeroQ: Please don't dig up old post and I don't want to see any more movierepair spamming...especially not for windows users...
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  11. Member
    Join Date: Feb 2001
    Location: europe
    Search Comp PM
    delete
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  12. I'm answering here because this post is still read by a lot of people each day (because it's the first Google entry when you search for MP4 repair) and there wasn't any really helpful answer yet here posted, so I'm trying to give a more detailed help for others.

    Why are there corrupt MP4 files at all? The reason is that this format (unlike others) is very sensitive to missing data bytes. Suppose a 3 GB .MP4 movie file is missing only one (!) of those fundamental bytes - it won't play anymore, although 99.99 % of the data is still there.

    One can fix these MP4 files using a hex editor (but that requires that you dig deeply into the QuickTime format as the MP4 file format is 99% based on the QuickTime format, you can get the QuickTime file format from Apple). Some tools that you might need to dig into the format:

    * QuickTime Atom Viewer (this Windows tool helps you to explore the MP4 format of your corrupt file)
    http://tsviatko.jongov.com/index_prj_quicktimeviewer.htm
    * Apple's QuickTime Dumpster (this Mac tool helps you to explore the MP4 format of your corrupt file)
    http://forum.videohelp.com/attachments/3629-1285662850/dumpster.zip

    If you do not want to manually fix your file (it can take hours or days to fully understand the format), some other possibilities are to use ready repair tools - I haven't seen any freeware tools in this area, so you might need to google those tools (for example 'video repair tool' or something else).

    I hope this helps more people to be able to repair their MP4 files.
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  13. Member
    Join Date: May 2011
    Location: Germany
    Search Comp PM
    I tried the HD Video Repair Utility, you can download at http://grauonline.de for my Iphone video recorder and it works rather good.

    The Windows version does not look very stylish- but it seems to do a good job in 75% of my cases. Also be sure that you have installed the proper codec (I use the CCCP-codec pack from http://www.cccp-project.net/).

    Regards,
    Christian
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