Shadow wrote:
On Tue, 7 Aug 2018 20:16:52 +0100, "J. P. Gilliver (John)"
wrote:

In message , Shadow
writes:
On Tue, 7 Aug 2018 20:28:13 +0200, "R.Wieser"
wrote:
[]
And pardon me, but your 'puter and backup DVD are *supposed to* have
duplicates. Its why you make backups. Why would you want to delete the
(duplicate) files on either of them ?

Because if they are backed up, the ones on disk are just using
up space.

I think we are perhaps confusing "backing up" with "archiving". The
terms - like all of language - change as time goes on, and no
intepretation is _wrong_; however, I think the interpretation of a
"backup" that RW (and I) use is the one currently in commoner use: a
backup is a safety copy made so that you can restore your everyday copy
if it gets damaged. _Your_ use is that when you've completed the
exercise, the one saved is the _only_ copy: then, if you actually want
to access it, you use the disc you've put it on.

2 copies. It only takes a few more minutes and DVDs are dirt
cheap.

And unreliable. Writable DVDs are not suitable for archiving.

Why not just use an external hard drive? Cheaper, simpler and more
reliable.