if the binaries are identical with a file compare then I would suspect your viewing app. You might see if you can view the same file on another computer.
if the file is modified as it is transfered, it can be the local ethernet driver, the local router, or any router between you and the server. Most of the time it is your local machines ethernet driver that would just need to be updated.
(assuming it is not an app problem, or a cloud server compressing your .jpg for you.) when i first used microsoft one drive I transferred .jpg that were 5 MB in size and they were scaled to 256KB on the server when stored. They looked about the same until you attempted to zoom in.
mrmike16 :
johnbl :
I would think it is onedrive scaling your photos down for you. Take a photo save it on your local drive, copy it to one drive, copy it back down to the local drive under a new name then do a file compare with the original file.
mrmike16 :
johnbl :
You would have to confirm the corruption by doing a binary file compare between the original source and the suspected corrupt file. To do this use cmd.exe as a admin then run the file compare utility. Fc..exe
fc.exe c:\file.jpg d:\file.jpg
You might have to use /b. Option (I don't remember)
This will tell you if you have actual low level corruption or if the file is being modified as it moves thru the OS.
mrmike16 :
So I have been noticing that my photos, some that I have rarely looked at, some that are new-ish, are disappearing. Not completely. 3 quarters of the image become a plain dark blue or black. A sliver still shows up. I just transferred some from my laptop and was going to post an ad with a picture of my phone, and the pictures are both corrupt. All of my photo apps/programs show the same thing. They were fine before. Is my new-ish hard drive dying, maybe? I'm running SeaTools now, but meanwhile, any suggestions? I really don't want to lose my photos! And I do backups but recovering a single file is quite annoying.
It's on OneDrive. There is no "source" version...On the computer it came from it also became corrupt. And before this, about a month ago, I found a picture on here that it happened to as well. It's been fine for 3 years and was never moved.
Looks the same to me.