>>1547482Anon, I've got to give it to you straight. Don't data hoard. Unless it's something incredibly personal, like family photos, video, or related to your business, realize that all things are ephemeral. That M-disc you just burned? Pending it doesn't get lost, damaged, or degrade (because we fell for the marketing), good luck trying to find a working optical drive in a decade or three.
On the other hand, I sympathize with you if you are indeed trying to preserve something personal, in which case you will have to consider options like external drives AND cloud services. Multi-GB flash drives, HDDs, and outright Network Attached Storage (NAS) are the most cost-effective options for offline preservation. Cloud options have their risks regarding privacy and costs, but offer off-site storage (in case your home or business burns down), and they take care of managing the physical drives.
You can get 20GB free from Mega and 15 GB from Google, with options to buy more storage. They also give you the software to sync your data across computers