Just in case you weren't joking, and at the risk of making a fool of myself if you were and still are joking (and/or trolling us now), where you initially said

Just in case you weren't joking, and at the risk of making a fool of myself if you were and still are joking (and/or trolling us now), where you initially said "non-rewritable optical storage media", some people people including me thought you were making a joke referencing this: https://en.wikipedia.org/wiki/Compact_disc https://en.wikipedia.org/wiki/Compact_disc. If you genuinely weren't aware of CDs, that's fine, see https://xkcd.com/1053/ https://xkcd.com/1053/.