PDR data files post crash mp4.RAW format
10-22-2018, 01:14 PM
#1
Drifting
Thread Starter
PDR data files post crash mp4.RAW format
I was involved in a crash and was hoping to review the PDR data but noticed what was written on the SD card was not in the normal MP4 format.
181019_114121_00009_-recording.mp4.raw
Has anyone ever seen this?
Any ideas as to convert to viewable format?
Thanks!
181019_114121_00009_-recording.mp4.raw
Has anyone ever seen this?
Any ideas as to convert to viewable format?
Thanks!
10-22-2018, 01:34 PM
#2
Pro
If you have the .raw extension on the mp4 files they did not finish writing or the file did not close correctly.
Basically its corrupt. (or partially corrupt.)
Make a copy on your computer and go grab one of the free utilities that can repair a mp4.
What's not corrupt can be written to a new file that you can view normally afterwards.
Basically its corrupt. (or partially corrupt.)
Make a copy on your computer and go grab one of the free utilities that can repair a mp4.
What's not corrupt can be written to a new file that you can view normally afterwards.
10-22-2018, 01:41 PM
#3
Drifting
Thread Starter
Thanks.
I have tried a bunch of utilities, but none seem to be able to recognize/read the file.
Any suggestions?
I have tried a bunch of utilities, but none seem to be able to recognize/read the file.
Any suggestions?
10-22-2018, 01:47 PM
#5
Drifting
Thread Starter
10-22-2018, 03:41 PM
#7
Drifting
Thread Starter
^Thanks. Tried that as well; no bueno. 
10-22-2018, 03:48 PM
#8
Safety Car
Secondly, sometimes some programs open a file and allocate all the space to it first, then start filling in the content. So I guess it's possible that what was actually recorded was only 1k or that it was an allocated but not yet written to mp4 file.
10-22-2018, 04:21 PM
#9
Drifting
Thread Starter
^Yes, PDR was running.
My guess is the crash shut the system down prior to writing the data properly to file.
Oddly, in my 2015 I had a similar crash and the PDR recorded the entire event fine.
My guess is the crash shut the system down prior to writing the data properly to file.
Oddly, in my 2015 I had a similar crash and the PDR recorded the entire event fine.
10-22-2018, 05:11 PM
#10
Safety Car
So let me get this straight, you've had two accidents and the PDR was on for both of them. The first one recorded the entire event and the second one didn't?
It's totally possible that the file was not properly closed. But it seems to me that that's exactly the kind of repair such utilities would be good for. Not sure why it's not working for you.
It's totally possible that the file was not properly closed. But it seems to me that that's exactly the kind of repair such utilities would be good for. Not sure why it's not working for you.
10-22-2018, 05:18 PM
#11
Drifting
Thread Starter
^Correct.
One in a 2015 Z51 which recorded the entire incident.
One in a 2018 Z06 which dumped the RAW file only.
Now that I think about it, we disconnected the battery to shut off the hazards.
I never stopped the PDR.
Rats.
Regardless, No tool I have used thus far seems to be able to do anything with the RAW file.
One in a 2015 Z51 which recorded the entire incident.
One in a 2018 Z06 which dumped the RAW file only.
Now that I think about it, we disconnected the battery to shut off the hazards.
I never stopped the PDR.
Rats.
Regardless, No tool I have used thus far seems to be able to do anything with the RAW file.
Last edited by Newton06; 10-22-2018 at 05:19 PM.
10-22-2018, 05:33 PM
#12
If you have friends or know people with professional video editing background, some of the professional video editing software like Adobe Premiere can import .raw video files even if they’re corrupt and didn’t finish writing when the equipment was interrupted or lost power.
if VLC can open it and play it, you can convert and save it as a stream. If the file is 2.4gb big something was written but the file container is corrupt. You just have to find a way to get to the morsels stored in the container. The .MP4 or .MOV or whatever file format is but the “container” for the video data.
if VLC can open it and play it, you can convert and save it as a stream. If the file is 2.4gb big something was written but the file container is corrupt. You just have to find a way to get to the morsels stored in the container. The .MP4 or .MOV or whatever file format is but the “container” for the video data.
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Newton06 (10-22-2018)
10-22-2018, 05:41 PM
#13
Drifting
Thread Starter
^Thanks.
I have Premier Pro CS6, but have no clue how to use it.
I have Premier Pro CS6, but have no clue how to use it.
10-22-2018, 06:03 PM
#14
Launch Premier, start a new “project,” and then “import” from file menu and locate your .raw file. If the actual video data is intact Premier should be able to import it so you can see it.
From there it gets a little tricky. You’ll have to place the clip on the work area, trim it and then output to a suitable container format like MP4 or MOV.
From there it gets a little tricky. You’ll have to place the clip on the work area, trim it and then output to a suitable container format like MP4 or MOV.
10-22-2018, 06:35 PM
#15
Drifting
Thread Starter
^Thanks.
I tried playing with a tool called Rawanyzer and it couldn't do anything with it, and actually deleted it from my SD card which I thought was odd.
Game over.
I tried playing with a tool called Rawanyzer and it couldn't do anything with it, and actually deleted it from my SD card which I thought was odd.
Game over.
10-23-2018, 12:47 PM
#16
Melting Slicks
10-23-2018, 12:52 PM
#17
Drifting
Thread Starter
It's gone.
I was hoping to review and learn something from it.
I guess shutting off the car while recording executes a graceful shutdown and closing of the file vs disconnecting the battery.
I was hoping to review and learn something from it.
I guess shutting off the car while recording executes a graceful shutdown and closing of the file vs disconnecting the battery.
10-23-2018, 03:21 PM
#19
Team Owner
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I believe that to be correct. I run my PDR every drive (as a traffic cam)... and I never tell it to stop recording; only stopping the engine at each destination. Files always play back, on screen or via PC, and have .MP4 designation.
