You're naive. If you think the typical CD-RW will still be readable in 50 years (much less 5) you're not taking average preservation steps.
The digital age will lose more than it preserves.
Whoever said anything about CD-RW? The beauty of digital stuff is that they can be copied.
HDDs, SSD, all those modern options and you talk about something who lost it's stand years ago?
I've backupped/replaced the content of my old CDRs a long time ago onto my NAS, which gets backupped to several servers and HDDs. The time will come when solid state backup is practical.