hard disks generally don't do well when left to rut. and if you need to repair it, fitting replacement parts my not be easy to come by anymore. writable cd-roms

hard disks generally don't do well when left to rut. and if you need to repair it, fitting replacement parts my not be easy to come by anymore. writable cd-roms are also not very reliable for long term storage. quality of the material surely makes a big difference, but lifespan is about 10 to 20 years. that being said, I still have floppies from end of the 80's that still work