I NEED to +1 Richard Lightstones comment above. Well stated fair and balanced position.
We do not own the recorded material. Setting up multiple backups and timecapsules and clouds... Why?I understand the feeling of wanting to be the hero and be celebrated for saving the day in the "just in case" scenario but, in the present day, as a group, we contribute in small and big ways to setting standards and precedents.
I do not see any reason why a sound recordist or mixer need add a full skillset of data wrangling, duplication, asset management etc... to the end of our day or weekend.
I heartily agree with the fair position of, hand off all data as soon as possible, keep one backup till production makes a back up. Follow up within a couple days and move on. (Read delete).
The longer any one of us retains these files "in case", the more responsible we become for everything retaining them entails. *We are not responsible*
(what I want to say) :
"here are the files, make two backups immediately, I'm clearing my harddrive for my next project in 48hrs"
My two cents. That harsh?