Well if you think about it, it kinda makes sense.
🙂 Audio and video are self-explanatory, but a disc is used for data storage, right? And the data is not on the disc until you put the information there yourself. The disc "learns" the information and remembers it.
😀
Kinda far-fetched compared to the other two words, but meh, whatever!
😛
Edit: Right, and I guess I should add a quote!
"Horas non numero nisi serenas", an old Latin saying that was often written on ancient sundials, meaning "I count only the bright hours."