Comment by samspot

My kids did not learn, perhaps because new kids kept coming to learn the lesson. And they generally can't connect a non-working disc to a specific act. Instead, a disc stops working after dozens of cumulative actions. We never replaced any broken discs either, and just slowly saw our collection dwindle from 20 working discs to something like 2.

My favorite example was the kids using dvds as roller skates to slide around the room.