Picture storage space not adding up
 

Hi,

I have an iPad and I'm using iTools to backup, it says there are 8.4GB of Photos on the device, so When I go to the photos tab and backup the items which include photos, videos and the gallery items, it only adds up to 6.4GB, please does anyone know where the other 2GB of data is please? There are too many items to manually go through them all to see whats missing.

Thanks