How far we've came?

It's amazing how far we've come from the turn of the century. If you want to call them records the first ones looked like they were on large toilet paper rolls the lines were cut in the side and the needle picked up the sound as it touched the lines on the roll. Next came the flat record again with a needle touching the lines  then came the eight track tape then they miniaturized it and called it a cassette tape. And now we have the cd's that it's amazing that a small per say laser reads the disk and converts it into music.