Re:
The iPod story began when Jon Rubinstein, the creator of iPod, wanted to make a small and convenient music player to replace the heavy and clunky CD players.
At that time he had not created the iPod, so he was not the creator of the iPod. Instead, he would earn that title
after he created the iPod. Perhaps:
Jon Rubinstein, an engineer, wanted to make a small and convenient music player to replace the heavy and clunky CD players.
~R