At the moment I supply all my customers with a DVD with all their images on. I have tried to select a good quality DVD-R to give them the best chance of lasting a while.

I was thinking of starting to supply on a USB Flash Drive, but was wondering if there would be any massive benefit in doing this? I have done some googling and there are various answers for data retention from 10 years to just about forever. The same goes for DVD-R, anyone able to shed any light ???

Cheers

Cris