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recover_mp4 can recover H.264/AVC stream from unfinalized MP4/MOV files without (or empty) header. You may got the unfinalized file in case of damaging camcorder during recording or such. This utility has been tested with files recorded by GoPro, but it may work with other camcorders too. Command line tool. Read full description how to use it. Donate if you successfully recover files!

File size:190.8KB
Old versions
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Latest version

1.92 Free / 3.0 Premium Service (September 3, 2018)


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Download recover_mp4 1.92 Free  190.8KB  Win

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Download recover_mp4 3.0 Premium Service  Win

Download recover_mp4 old versions

44 files8.2MB

Software License

Freeware (Free download!)

Supported operating systems


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Version history / Release notes / Changelog


All features

This utility can recover video and audio streams from unfinalized MP4/MOV/3GP files without (or empty) header.
You may got the unfinalized file in case of damaging camcorder during recording or such.

Supported video formats: AVC/H.264, HEVC/H.265

Supported audio formats: AAC, ADPCM (Intel), MP3, PCM (LE, BE, float), RAW

recover_mp4 in_good_similar.mp4 --analyze
recover_mp4 in_corrupted.mp4 {out_video.h264 | out_video.hevc | --novideo}
[out_audio.aac | out_audio.wav | out_audio.mp3 | out_audio.raw | --noaudio] [options]
--start read from position (ignore mdat atom)
--end end position (ignore mdat atom). Specify 0 for EOF
--avcidrmax ignore AVC NAL units (IDR) with the size above than bytes
--avcxmax ignore AVC NAL units (non IDR) with the size above than bytes

--gopro4 use Ambarella templates and detect GoPro4 specific data. Default for MP4 files.
--ambarella use Ambarella templates (ignore GoPro4 specific data).
--qt use QuickTime templates. Default for MOV files.
--eos use Canon EOS templates
--eos2 use Canon EOS extended templates
--vmix use vMix templates
--blackmagic use BlackMagic templates
--g7 use Panasonic DMC-G7
--a7sm2 use SONY A7S Mark II templates
--drim use DRIMeIII templates (Samsung NX1000 camcorder)
--drim5 use DRIMeV HEVC/H.265 templates (Samsung NX1/NX500 camcorder)
--hevc use generic HEVC/H.265 templates
--ext use generic templates for any other camcorder or smartphone

Step 1: Use any good previous file with the same resolution and bitrate to generate the header files, for example

>recover_mp4.exe good.mp4 --analyze

It will create files 'video.hdr' and 'audio.hdr' in the current directory and print instructions (ffmpeg options, etc.).

Step 2: Recover streams from the corrupted file, for example

>recover_mp4.exe bad.mp4 recovered.h264 recovered.aac

Note: Files 'video.hdr' and 'audio.hdr' must be exist.
Probably you need to add a specific option (look at instructions from step 1).

Step 3: Use any other utility (Yamb or ffmpeg for example)
to recreate the MP4/MOV file from the streams (recovered.h264 and recovered.aac).

>ffmpeg.exe -r 30 -i recovered.h264 -i recovered.aac -bsf:a aac_adtstoasc -c:v copy -c:a copy recovered.mp4

Note MP4 does not support PCM sound, you must create MOV in this case:

>ffmpeg.exe -r 30 -i recovered.h264 -i recovered.wav -c:v copy -c:a copy

In case of ADPCM audio:

>ffmpeg -r 30 -i recovered.h264 -i recovered.wav -c:v copy -c:a adpcm_ima_wav

Note: 30 is FPS in these examples. Specify your correct value.
In case of 29.97 I suggest to specify 30000/1001 instead.

Sections/Browse similar tools

Alternative to recover_mp4


Video Repair Tool

Guides and How to's

Acronyms / Also Known As

recover_mp4, recover_mp4_to_h264, slydiman recover_mp4_to_h264, recover_mp4_to_h264

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10 reviews, Showing 1 to 5 reviews

The free version worked perfectly. I don't often go out of my way to write reviews, but this was just amazing and really saved me. Thank you! and thanks for the guide.

Review by alek on Dec 5, 2018 Version: 1.92 OS: Windows 10 64-bit Ease of use: 3/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

This recovery program literally erased my reference file. The reference file is now only 0 bytes big instead of 80GB.

Im really mad now.

Review by Alkl on Jul 1, 2018 Version: 1.92 OS: Windows 10 64-bit Ease of use: 4/10 Functionality: 7/10 Value for money: 10/10 Overall: 6/10

No comments. Rating it only.

Review by Patrick on Jun 30, 2018 Version: 1.92 OS: Windows 10 64-bit Ease of use: 7/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

Awesome tool, though had part of video out of sync with audio (GoPro 5).
Wrote to the creator at slydiman website, he told me the service has moved to
So I contacted there, and they tuned the video a bit manually (not sure how) and the sync was recovered.
All in all, very satisfied, 10/10. Would have been 11/10 if not for the lame UI both the utility and website have (you can tell they are related, though).

Review by fallout2019 on Jun 15, 2018 Version: 2 OS: Windows 10 Ease of use: 10/10 Functionality: 10/10 Value for money: 10/10 Overall: 10/10

Just to say that it worked to recover files from a Mobius 2 camera, mp4 file at 1080p at 60 fps, H264. I just typed 3 commands. I downloaded the software, ran it the first time with a good file using --analyze, then the 2nd time using the exact command that the software told me to use at the end of the analyse phase. Finally, downloaded and used ffmpeg to create the final mp4 file, as per instructions. The video was fine, the audio too, bus slightly put of synch, which is not an issue for me. All files worked in Sony Vegas now.

This was a 2.5 GB file that got corrupted when recording in a bicycle and there was a crash. The camera was lost, but the file was recovered.

Familiarity with command line in Windows was an asset (for things like change directory, copy and paste inside the cmd tool, all very easy). Just type cmd in the windows search box at the bottom of your screen and go to the directory that you put all files in, including the software, and it all works like a charm.

Review by Rsm on Mar 23, 2018 Version: 1.92 OS: Windows 10 64-bit Ease of use: 7/10 Functionality: 9/10 Value for money: 10/10 Overall: 8/10

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