From time to time, I find out that an older, posted image has got corrupted so I have to re-upload it.
In the last few months, the frequency of the problem has increased. There has been at least 3-4 instances of suddenly corrupted pictures, and not only images uploaded long time ago. I do not see any reason for this?
Additional trouble occurs when desiring to delete the corrupted photos from the database. The WP manage-uploads interface is very user-unfriendly when it comes to deleting old photos. If they are situated somewhere in the middle of the upload base it is necessary to browse through a lot of uploads to just delete one image --- and once the upload is deleted, if I want to delete one of its neighbours, the browsing-through-all-uploads process starts all over again. However, I have discussed this problem before and this post is about the corruption of photos.
Anyone knows what causes images to corrupt and how it can be avoided?