Yes, I appreciate that. In some ways this is an advantage for a large image collection.
Any of the really key shots I would have hi res backups of, but for all the holiday pics, reduced res is good.
I just had a further thought on this on how to solve the ordering issue on the day. If the image names were prefixed by the order they appear in the diary entry, (eg 1_image name) then they would sort by date and then name. This would ensure that the order in the diary entries was preserved if all images for a day had the same date and time.
NZ was awesome and I dutifully filled in my Diarium diary daily to preserve the trip. Now I am trying to rationalise all the images into a single folder in the correct order. I am merging images from Diarium with 2 cameras and also images I have processed to improve. It is a bit if a headache to be honest.