Amnesia or old age

So yeah i have an Ipod and i know what MP3 players are but i have no idea that there was MP4 players until about a month ago. I am trying to remember the days where CDs were a luxury and an record was that round pizza looking thing that you didn't want to get scratched. I am trying to remember the days of casette tapes and video tapes but i am can't. Does this mean that i am getting old???