For those thinking about long-term data storage: first and foremost it's a process, not "a thing to get done". Think about both a) migrating and b) growing cap

For those thinking about long-term data storage: first and foremost it's a process, not "a thing to get done". Think about both a) migrating and b) growing capacity needs at the same time vs your usage pattern. It may happen that for your case any write-once media is simply never the best choice. (it will always take a lot longer to migrate a stack of CDs/DVDs/BluRays than to plug a new bigger drive alongside the end-of-live'ing old drive) (and please appreciate the Venn diagram of `backup` and `long-term storage`; it's not 100% overlap)