Jump to content

Corrupt raw file

Recommended Posts

Advertisement (gone after registration)


I'm struggling with corrupt raw files. I've reformatted my sd card several times and keep having the same issue. There's a purple overlay, and weird sections of previously deleted images. See attached - the (bad hospital lighting!) photo of the banners is the image I took, but the two sections on the righthand side are of an image that I took months prior and had deleted from the card. Also as you can see, this is only happening in the raw format - the jpg doesn't have this issue (but I would prefer to edit in raw).
Can you help me figure out:
1) How to recover this image? and
2) How to prevent this from happening again?
Products are:
- Sony 128GB SF-G Series UHS-II SDXC Memory Card
- Sony Alpha a7 III 
- Files pulled from iMac (card slot in back) running Mojave OS, v.10.14.6

Screen Shot 2019-10-14 at 4.20.54 PM copy.jpg

Link to post
Share on other sites

Agree the first this to rule out would be to use a brand new camera formatted sd card.   I bet either the card is too slow for the camera [ class 10 is good less is suspect ]  or the jpeg gets written to card first and then while writing the larger raw --something interupts.   Did you diddle with any other menu or buttons during the write?  Did you shoot a burst and buffer is full??   


Link to post
Share on other sites

  • 1 month later...

Hi, No one can give you fully guarantee this should not have happen again because there may be possibility your card has an virus infected when you put it on your computer or another pc. No software or person provide the facility to prevent this from happenning again. I would suggest some tools or software which able to recover this image such as Stellar Photo Recovery, Recuva, Minitool and so on. I would suggest before you can purchase you need to read all the details on these software's or better way you can try the demo version of each software and see the preview of recovered images. Thanks! 

Edited by hirussellsmith
Link to post
Share on other sites

Your problem is that your slack space ( unused space in between files ) still have something there. Being image data can be processed and read. Slack space could also hold text, sound, and other kinds of information as well. Slack space is unused space being written over but the contents while being marked deleted is still their.

1. delete everything off your card via computer.

2. Get an "eraser" zero filling program and let at it.

3. Reformat the card via the computer

( your poor baby your camera does too much )

4. Then allow your camera to do it's thing and you should be set.


This was a problem that happen to me when I was using my camera phone "Lumia 1020" and when converting from RAW to Jpeg Pro. Sometimes the Jpeg PRO would fail. Regular JPG would stick around but JPG pro failed.

That is a 42mp compressed JPG v. Regular JPG. The RAWS would come out flawless.

However when trying to recover regular 5MP JPG to the 42MP RAWS what you show me would occur.


My advice to my experience would be to shoot only in RAW. Because while the JPEG could come out good it is taking time to compress it down to JPG

Also if you are using cheap over the counter or somebody elses old card it might be the problem as well. Buy the best card you could buy even if it cost $200 a pop


Edited by DanArt
Link to post
Share on other sites

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.

Reply to this topic...

×   Pasted as rich text.   Paste as plain text instead

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.


  • Similar Content

    • By DUPINO
      Hi everyone, 
      I got a problem during a recording.. I change the battery without stopping the recording.. So, the rush didn't register on the SD card as a '.MP4' file. Instead of that, I got a '.RSV' file (visible on my computer) that I can't read as a video, and which has the good size of my original rush (29Go). 
      I want to know if you have any idea about how to open it or convert it as a MP4 file? 
      Thank you in advance. Greetings. 

    • By HBI
      Hi - I have recently bought a Sony a7ii mirrorless camera and filmed with it in rush without looking diligently into everything. I didn't realise I had to use the PlayMemories Home to transfer the footage elsewhere. I did the traditional method of copying and pasting the entire folder from my SD card into an external drive. I have shot all my footage with the XAVC S format. And for a while, I couldn't figure out how to get access to the MTS files, but when I solved it, some folders were empty (while viewing on the hard drive). The folder size of the MTS files is in KB instead of GB.    Now, I only have access to all the MP4 files (low resolution) and unable to access the MTS files when I follow this pathway AVCHD > BDMV > STREAM > MTS. According, to a Sony customer support specialist I spoke to, not using the app could result in damaged or unplayable files. The SD card has long been formatted, so no way of going back to this specific step.    I'm wondering if anyone else had had this issue and if there's any advice anyone can offer. It's really distressing. 
    • By Egor
      Hi community,
      My A7 recently started creating multiple file folders on the SD card, which makes it hard to work with files later on as their names repeat in each folder, and it takes manual renaming each time. Earlier I didn't have this behavior, and can't think of why this may have happened.
      Any ideas or advice?
    • By Igotdumbquestions
      Hi gents, another dumb question from a fortunate but inept user (we're a dime a dozen right?). So I got my hands on an A7Riii, and this makes it the first camera I've had with dual card slots. Right now I have it set to save in one slot as RAW and the other as JPEG when I take a picture. When I connect the my camera to the camera however, I can only see the RAW files. If I put the second (JPEG) card into a card reader, I can see the JPEGs, but not while it's still in the camera. 
      Is something wrong? I want to be able to see both files when I connect my camera to the computer. 
      edit - My bad I got this figured out. Turns out I'm just really dumb...I set the USB connection to "mass storage" and now see everything. 
    • By Flightmedia.tv
      Just picked up and a6300 last week. I do lots of video work so I switched over from DSLRs.
      The camera is amazing - but I spent the day in the rockies today and took probably about 300 shots, including lots of great wildlife clips. Near the end of the day i turned on my camera to take a quick shot, after i took the shot it said something along the lines of "please wait... processing image". I'm not sure ecatly what it said because I didnt think much of it at the time. So after it said that for about 5 seconds I tried just shutting my camera off and turning it back on. When it came back on it came up with a "image database not ready" screen and wanted me to retrieve data from the card. I proceed but it couldnt retrieve data. After tinkering for a few minutes it just had a black screen when i would turn on my camera with the card in it. I think tried plugging my sd into my pc and my pc would make the sound it makes when an external devoce is connected but no sd drive would come up. I also tried plugging the sd into one of my canons and it would also go to a black screen when the card was plugged in.
      I'm assuming the card is dead. Has this happened to anyone else? Any hope of recovering the data thats still on the card? Not that its a huge deal if I loose todays shots but I shot lots of weddings and it wold be horrible if this happened at the end of a wedding day. Let me know your thoughts...
      For reference, the SD card is a 64gb Lexar micro SDHC and is about 6 months old.
      Thanks in advance,
  • Topics

  • Create New...