In message , mick
writes:
[]
Yes, your are correct about the time stamp, but I just mark those files
to be excluded from future back ups. That is easy enough to do along
with other files and folders such as photos, videos and books that will
never want to be repeatedly backed up.

Sounds like you might benefit from some syncing application for your
backups, if you have lots of files you don't want to back up repeatedly
(because they haven't changed). I use synctoy to "back up" my D:
partition (cycling round two or three backups, though that's not
relevant to this discussion); other sync utilities are available.
--
J. P. Gilliver. UMRA: 1960/1985 MB++G()AL-IS-Ch++(p)Ar@T+H+Sh0!:`)DNAf

"Dook, that was great but I think the line needs
awe. Can you do it again, giving it just a little awe?"

"Sure, George," said Wayne and looking up at the cross said:
"Aw, truly this man is the son of God."
(recounted in Radio Times, 30 March-5 April 2013.)