Originally Posted by chevycowboyusa
Thumbs are built and kept in a folder under DICM. there is most likely a process that scans the folders for pics and then makes a thumb if it doesn't already have one.
Thus there are actually two copies of pictures on your phone. One is full sized and the other is a thumb size.
You can copy all the pics off your phone to one folder on your computer, then delete all the photos from your phone and then copy them back from your computer.
If you have thousands of pics, I'd back them up anyway. dont want to lose some great pics...
Yeah, I've tried deleting the .thumbnail folder to try to get the gallery to rescan. Say I have 1000 pics, and I add a folder of pictures with a 1000 more, the first time I open the gallery, it shows 1000, with a spinning wheel. Eventually, it'll populate with 2000 pictures. And you can tell it's creating thumbnails. If I just delete the thumbnail folder, when I open the gallery, it immediately shows 2000 pictures, but it'll slowly recreate thumbnails. That's why I think there has to be some other cache somewhere, and in my case it has duplicates in it.
As for backup, I have a Synology NAS (with 1TB RAID1 mirror) that all of my pictures are backed up to, and I use the Synology DS Photo+ app to instantly backup pictures as I take them to my NAS. Once a month, my NAS is mirrored to a 1TB USB drive.