MP4 corrupted

[RPGglitchy]

Hi guys,

I am new to this forum but I ran into a problem with my mp4 files earlier today.
It is depressing how much I suffer though this. I recorded my let's play in ten episodes and they worked at first.
But then I noticed my HDD was getting full so I moved them to my external drive. (yes...move, I neglected to copy it first :/)
So there they were, on my external drive. Not showing any video and there was this robotic sound and it ended :/.
I am desperate on finding an answer because I put alot of work in recording these video's.

Please help me!
thx in advance!

Greetings, RPGglitchy

[fvisagie]

From your description it isn't clear to me exactly what the problem is. But in case they have some use here are some thoughts. If your files have disappeared, you can try utilities like DiskDoctor to recover them. You can even try this on the drive where they originated from, but you have to use the machine as little as possible before attempting the recovery. The space previously occupied by the files is now marked as free and can be over-written by any other process.

If your problem is that the video files are present but corrupted, you can try HD Video Repair Utility. It's commercial software, but apparently some people have worked around the 50% file length limitation of the evaluation version. At least you'll be able to see whether it's any use to you.

Cheers,
Francois

[RPGglitchy]

I am happy that you replied!
But I have tried that recovery tool you suggested. It hasn't helped me :/

But seems I wasn't clear at explaining so I'll try again!

I moved my files from my HDD to my external drive. And once they were on there, they suddenly did not work anymore.
The videos have a blackscreen and no more audio. but they did work before I moved them.

Cheers!

[aedipuss]

i assume if you copy one back doesn't work? did you try right clicking on the drive/properties/tools/error checking?

[RPGglitchy]

copying back doesn't work and there are no errors :/

[aedipuss]

install mediainfo. run it and put it into text mode. open one of the videos with it and copy/paste the results here.

[RPGglitchy]

Mediainfo: Textview -

General
Complete name : K:\Game\Game footage\Metal gear rising let's play\2013-03-31_173659768 Go building GO.mp4
Format : MPEG-4
Format profile : Base Media
Codec ID : isom
File size : 1.91 GiB
Duration : 13mn 12s
Overall bit rate mode : Variable
Overall bit rate : 20.7 Mbps
Writing application : Lavf54.0.100
Xtra : WM/MediaClassPrimaryID

Video
ID : 2
Format : AVC
Format/Info : Advanced Video Codec
Format profile : High@L3.1
Format settings, CABAC : Yes
Format settings, ReFrames : 4 frames
Codec ID : avc1
Codec ID/Info : Advanced Video Coding
Duration : 13mn 12s
Bit rate : 20.5 Mbps
Width : 1 280 pixels
Height : 720 pixels
Display aspect ratio : 16:9
Frame rate mode : Variable
Frame rate : 24.961 fps
Minimum frame rate : 2.778 fps
Maximum frame rate : 25.000 fps
Color space : YUV
Chroma subsampling : 4:2:0
Bit depth : 8 bits
Scan type : Progressive
Bits/(Pixel*Frame) : 0.892
Stream size : 1.89 GiB (99%)

Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 13mn 12s
Bit rate mode : Variable
Bit rate : 152 Kbps
Maximum bit rate : 192 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 14.4 MiB (1%)


Is this what you need?

[mike20021969]

What is your player?

Do you get any error messages?

Have you tried a different player?

(I love Metal Gear. Was you gonna YouTube them?).

[RPGglitchy]

What is your player?

Do you get any error messages?

Have you tried a different player?

(I love Metal Gear. Was you gonna YouTube them?).

I play my videos with media player classic, but the non-classic one give me an encounter-error and VLC doesn't work either.

And I am youtubing them ( www.youtube.com/charpeegeegaming )

[mike20021969]

And I am youtubing them

(I just watched MGR Part 10 - I think stealth is the key to taking out those pesky guards).

I hope you get this corruption problem sorted.

[RPGglitchy]

And I am youtubing them

(I just watched MGR Part 10 - I think stealth is the key to taking out those pesky guards).

I hope you get this corruption problem sorted.

Oh thx And I already recorded part 11 but it got corrupted
So it has to wait until it gets sorted out or I have to do it over

[FireRouteR]

Hi RPGglitchy

You could check whether the footage is still repairable using MP4repair.org. Diagnosis is free and runs in your browser what means nothing is installed on your computer. Best of luck!

--Fire

[RPGglitchy]

Hi RPGglitchy

You could check whether the footage is still repairable using MP4repair.org. Diagnosis is free and runs in your browser what means nothing is installed on your computer. Best of luck!

--Fire

Amazing! It detects media and retruns the percentage of repairabilty. I am going to try and find out how to do this, because the site demands money to repair it xD I will keep you posted!

[mike20021969]

Is caution need with this service?

I just uploaded a playable file. It seems it cannot detect that there is absolutely nothing wrong with it?

Here's the summary...

MP4repair.org has found a video track description.

Althrough the movie container is damaged, and the file is unplayable, this track information can be very helpful to preview the movie in MP4repair.org, and later to repair it.
Entering this track description in the search field above can bring in additional information.

Repair Score: 85%

MP4Repair.org has identified a media type that is present in the file, and that can be decoded into Preview images.
However, media doesn't seem to be present uniformly in the file. Repair will most likely be successful, but some parts of the damaged file may not be repairable.

Media: H264
Size: 6 MB

H264 repair is difficult because it is versatile, highly configurable and exposes very little data pattern.

[RPGglitchy]

Is caution need with this service?

I just uploaded a playable file. It seems it cannot detect that there is absolutely nothing wrong with it?

Here's the summary...

MP4repair.org has found a video track description.

Althrough the movie container is damaged, and the file is unplayable, this track information can be very helpful to preview the movie in MP4repair.org, and later to repair it.
Entering this track description in the search field above can bring in additional information.

Repair Score: 85%

MP4Repair.org has identified a media type that is present in the file, and that can be decoded into Preview images.
However, media doesn't seem to be present uniformly in the file. Repair will most likely be successful, but some parts of the damaged file may not be repairable.

Media: H264
Size: 6 MB

H264 repair is difficult because it is versatile, highly configurable and exposes very little data pattern.

ah.. I get the same results :/

[FireRouteR]

Hi mike,

This service assumes file provided is damaged, that's all. BTW you can check their FAQ to see that service seems not a scam.

--Fire

[aedipuss]

have you tried opening it with a program that might be able to re-mux the file? try avidemux and mediacoder. they both have settings that can "copy" the video and audio then re-write the file with no quality change.

[RPGglitchy]

have you tried opening it with a program that might be able to re-mux the file? try avidemux and mediacoder. they both have settings that can "copy" the video and audio then re-write the file with no quality change.

I tried avidemux and couldn't figure it out xD I will try mediacoder now!

[fvisagie]

You can also try http://www.ffmpeg.org:

ffmpeg -i yourfile.mp4 -c:a copy -c:v copy newfile.mp4

Cheers,
Francois

[RPGglitchy]

You can also try http://www.ffmpeg.org:

ffmpeg -i yourfile.mp4 -c:a copy -c:v copy newfile.mp4

Cheers,
Francois

Nope, that didn't work :/

[aedipuss]

avidemux set as in picture.



then click save video icon in upper left. navigate to where you want it and make sure to give it a name that ends in .mp4

[RPGglitchy]

avidemux

then click save video icon in upper left. navigate to where you want it and make sure to give it a name that ends in .mp4

Didn't do the trick either I'll upload my raw recording to my dropbox and share the link, Maybe you could take a quick looksy at it? Iunno :/
I'll post the link when it's doen, the file is huge xD

[RPGglitchy]

Here is my raw recording file that stopped working. I have many, many more but this is the shortest one ^^

https://www.dropbox.com/s/j18vc9yk92ckxav/2013-04-03_192554483%20last%202%20-%20Copy.mp4

[aedipuss]

sorry but what's in the file is not a video. there are parts of lots of different files. open it with a hex editor and you'll find things like this.

[RPGglitchy]

sorry but what's in the file is not a video. there are parts of lots of different files. open it with a hex editor and you'll find things like this.


[Attachment 17109 - Click to enlarge]

oh dear god... So It got mixed up with stuff while moving? I guess it's lost then :/

[aedipuss]

yeah i'd say that external drive is suspect. i wouldn't use it for anything important.

[RPGglitchy]

dangit.. Well, bad luck I thank you all for trying, but if someone magically manages to make it work xD Let me know!!

[fvisagie]

sorry but what's in the file is not a video. there are parts of lots of different files.

@RPGglitchy, this may be a good point to revisit HD Video Repair Utility. Inside the files it processes it tries to identify parts that contain video/audio and parts that do not:

How does the repair work?
1. The overall problem to be solved is finding the video and audio chunks in damaged and corrupt movie files.

The video repair utility we developed, scans the movie (e.g. a .MP4 file) for video and audio chunks, tries to guess if a chunk is video or audio and so extracts all video and audio chunks for a new repaired movie. This tool doesn't depend on any valid or correct container format - it fully automatically can extract the video and audio streams without a valid container.

2. Finally, the tool saves the chunks (audio and video streams) to a new movie file, and so adds a new QuickTime container to them.

The result is that the video (and the audio) can be played back again. If there was any raw video or audio data in the file, it can be stored into a new playable movie file.

I've used it for files mixed up with other data like yours, and it was able to find and make playable all actual video.

For best results read their documentation (online when last I looked) carefully. It explains exactly what process to follow and contains sage advice like

It is highly recommended to save your corrupt file to a non-corrupt media before running the repair on it!

If these files are really important to you, I suggest you save an image of the whole drive, copy all video files off it, run this utility on the copies, attempt to repair the files on the drive with 3rd-party utilities, see if you get better results with copies of those, attempt to repair the drive with 3rd-party utilities, and see if you get better results with copies of the video files then. If at any point in the process things take a turn for the worse, you can restore the image back to the drive (or another one if it's physically damaged).

[torrentcrazy]

sorry but what's in the file is not a video. there are parts of lots of different files. open it with a hex editor and you'll find things like this.


[Attachment 17109 - Click to enlarge]

oh dear god... So It got mixed up with stuff while moving? I guess it's lost then :/

Also you may want to try a general disc recovery tool, something that finds deleted, lost, corrupted files and tries to recover them from the hard drive. It's not specific to video, but it may try to put the pieces of files into whole units and you may be able to save some of your files that way. I've had some success with recovery tools in the past. They aren't perfect and inevitably you still have some stuff left in the wind. It's worth a shot though, you might be able to at least get some of it back.