for long term archival or media storage, a Blu-Ray drive with write functions is a good investment,
one that can run MakeMKV is a plus.
optical storage is the best medium for backups and data sovereignty. with proper storage M-Disc branded blu-ray discs last basically forever. there's also all sorts of different data parity options you can do for redundancy.
you can get a spindle of 5 M-DISC BDXL 100 GB discs for about $80 USD. it will take you about 2-3 hours with a 4X drive to write to them though.