[Help] Fixing broken DNG-files

[Dr. Cooper]

Hey guys,

I don't know where else to put this, but I hope maybe someone else here can help me:
Sometimes it happens that DNG-files are broken after I'm trying to create a backup. Unfortunately not just the backup, but also the original file is corrupt afterwards, even though they were ok before. I have absolutely no idea why and when this is happening, all I can say is that I don't think it's a hardware-issue (e.g. broken RAM) since it already happened on two different computers with different hard drives, the only thing they had in common was that they were running Win 10 and used Windows Explorer for copying the files.

However, here's one of the broken DNGs: https://we.tl/t-3TG4XhE7Nl

Maybe it can be fixed somehow easily? Resolve just shows it as "Media Offline" and Photoshop says "Unexpected EOF" (End Of File) and won't open it. I already tried a workaround to add a dummy-file (I read about that here, but it didn't work either. If somebody here has an idea how it could be fixed I'd appreciate any kind of help.

Thanks in advance!

[Stamper]

Weird, same on mac, it's an unexpected end of file, and it won't convert either. Try with RawTherapee.

[Dr. Cooper]

RawTherapee really opens the file, but unfortunately it seems like the file will be useless as too much of it is broken. Only about 1/4 from the top are still ok, the rest is just black.