Assuming you need to “get up and go”, like a refugee situation, what are the chances that you’ll find a drive that can read Blu-ray disks, versus the chances that you’ll find a LTO tape drive ?

Blu-ray drives are fast becoming hard to find, so I'd pack a USB bluray drive with your discs.

New computers don't have them and haven't for a few years. I purchased a drive recently and to get a quality drive, I had to go for a NOS pioneer drive, or get another LG, and the LG drives are kid-of shit.