Durable? Optical media? Are you sure about this?
Try this on some discs (obviously use garbage discs you don't need anymore!!):
- Drop one with the egde on concrete (or throw it like a Frisbee against a wall). Good chance it'll shatter at the edge. DVDs might come apart in rare cases (they're like a glued sandwich and can be separated with a sharp knife and a bit of patience)
- Don't get me started on organic dye CD-R and DVD±R and UV-light…
CDs are more prone to certain kinds damage:
- Scratch a CD (not DVD) on the label side. Damaging the upper side/the protective lacquer → exitus
- Even if there's no data in this spot you get a high chance of future disc rot with a small damage like this
- Put a strong adhesive tape on the label side of a CD and rip it off. You might have the data layer in your hands, ready for the microscope
- Write (yourself) to a CD with an aggressive marker instead of a CD pen. It might eat itself through the lacquer and destroy the data layer
- Write (with CD burner) something in Mode2/Form2 (less error correction for more data on VCD/SVCD) on a CD-R and scratch the shiny side a bit (not the label side this time). The video will most likely play. The PC will most likely complain when copying the data back to HDD.
Sure, all these examples are abuse and/or carelessness. Sadly such things happen. I wouldn't recommend trying
this with any data storage medium, but I don't think an average optical disc would have survived while an almost sealed NAND¹ cart has pretty good chances.
Careless children can ruin expensive game discs fast. Expensive game disc → Trash. (By the way… To the producers:
Thanks for the copy protection markings that stop me from backing up the expensive games I payed for.)
Ask
@Alexander1970 about his experiences. What idea children might get when they have a bunch of DVDs and a Wii…
I don't think optical discs are durable. But they are cheap.
Really cheap to mass-produce. Way cheaper than chips. So cheap AOL produced their free advertising junk discs in quantities I do not even want to think about. Also: CD/DVD offered a great amount of data storage earlier than flash memory. If treated with utmost care and if there is no manufacturing defect, pressed discs seem to have a pretty long lifespan.
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¹ Wario Ware D.I.Y is a special case. Other DS games have MASK-ROM which is much more durable. Wario surviving this surprised me.