Quote from: NotATether on Today at 10:11:05 AM

I'm not sure why the OP isn't considering USB external hard drives for backup purposes, because HDDs have a much better lifespan than the flash that you can find in a USB pen drive.

Probably true, unless they are made by some unknown manufacturer with cheap components.
However, if you want to leave something for your children or grandchildren I would still choose physical backup of seed words on stainless steel.
There is a good chance most drives will become obsolete in future, in same way like VHS and CD drives are now.

Quote from: ABCbits on Today at 10:47:44 AM

But in terms of lifespan, M-Disc would be better option as it claims can last 1000 years with bigger storage. Although you need to encrypt the file manually and certain DVD writer which also support M-Disc writing.

I never in my life saw M-disc and you would probably have hard time finding and playing it in future, but yeah they will survive longer unless someone scratches them Tongue