VideoHelp Forum

Our website is made possible by displaying online advertisements to our visitors. Consider supporting us by disable your adblocker or Try ConvertXtoDVD and convert all your movies to DVD. Free trial ! :)
+ Reply to Thread
Results 1 to 12 of 12
Thread
  1. Member
    Join Date
    May 2019
    Location
    London
    Search Comp PM
    Hi,

    I have a few corrupted videos, after filming on the phone with an app that didn't notify me that there was not enough space left. So the files are there, but they are Not playable.
    I've tried fixing using reference video, but no luck. Is it possible for files to be corrupted beyond saving? Or is there always a way?
    Quote Quote  
  2. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    What program did you use to try and recover this file? How big is the damaged file?
    Post a mediainfo report (text view) of the reference and damaged file
    Quote Quote  
  3. Member
    Join Date
    May 2019
    Location
    London
    Search Comp PM
    Hi, thanks for your response.
    I've used Stellar for fixing, it was recommended as a better software for that.

    The exported result doesn't give much -

    General
    Complete name : C:\Users\musei\Downloads\Untitled_1A_10.mov
    Format : MPEG-4
    Format profile : QuickTime
    Codec ID : qt 0000.00 (qt )
    File size : 7.15 Mi
    Quote Quote  
  4. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    Upload this damaged file here to the forum and we'll take a look at it. Also,
    a small known good file from the same device to compare
    Quote Quote  
  5. Member Cornucopia's Avatar
    Join Date
    Oct 2001
    Location
    Deep in the Heart of Texas
    Search PM
    If that's all MI is giving you, prospects are not good.

    Scott
    Quote Quote  
  6. Use Photorec it's the best for that (tested & approved) and it's free
    tutorial here: https://www.cgsecurity.org/wiki/PhotoRec_Step_By_Step
    Quote Quote  
  7. Member
    Join Date
    May 2019
    Location
    London
    Search Comp PM
    Thank you for the advise. Yeah, I've tried various softwares, no luck. But haven't come across a mention that videos can be corrupted beyond repair, so was wondering how possible that is?

    @davexnet As for the file and the ref - here they are
    Image Attached Files
    Quote Quote  
  8. Member
    Join Date
    Mar 2011
    Location
    Nova Scotia, Canada
    Search Comp PM
    Originally Posted by ydiana View Post
    ... haven't come across a mention that videos can be corrupted beyond repair ...
    That was hinted at by Cornucopia and I'm going to state that yes, it's defintiely possible. Especially if the header is located at the end of the file.
    Quote Quote  
  9. Member
    Join Date
    May 2019
    Location
    London
    Search Comp PM
    Thanks Rob,

    Sorry for the noob question, I'm just trying to understand how it all works to see what I can do, e.g. How did the files are there as "shells" and were recording the whole time, yet no content is present. What would be the header? And what does it's placement mean?
    Quote Quote  
  10. Member Cornucopia's Avatar
    Join Date
    Oct 2001
    Location
    Deep in the Heart of Texas
    Search PM
    Some software pre-allocates the space reserved for video recording (a certain size, or a max possible like 4gb) in order for it to be able to have less data filing overhead while the realtime recording is going on.
    So if it reserves that space, and possibly has a prewrite cache, it is possible to have the header, and maybe a segement of good data (or not), and then all zeros (or however that remainder area was last left), when something happens that interrupts the recording.

    Not uncommon at all.

    Scott
    Quote Quote  
  11. Member
    Join Date
    Mar 2008
    Location
    United States
    Search Comp PM
    The important moov atom, which contains information about the file structure, is missing. The mdat section is missing its size,
    and the data that follows could possibly be valid, at least some of it. Whether anything could be done in the hex editor,
    it would take some time to study it; anybody who knows this file structure well may be able to help, if you can find somebody
    Quote Quote  
  12. Grau Video Repair is good at repairing truncated MP4 videos automatically.
    Quote Quote  



Similar Threads