Chad Superman 5D memory crystal; Virgin Optical Disc; Lasts for around 100
years if lucky, holds very little data when compared to a memory crystal, scratches can ruin disc data, really fragile, made of flimsy plastic, requires constant climate control to prevent disc rot. Lasts billions of years, holds 360 terabytes of data, still works when scratched, really strong, made of quartz glass, requires no climate control.