Yoto Player Make Your Own Card. See convert a song to a different file format with the apple music app or itunes for windows. However, that mp3 is not an option showing on my mac.
Go back to the yoto app and you’ll see your new recording under “make your own.” click the three vertical dots to the right and choose “link to a card” on the menu that pops up. On one support page it indicated i could export to an mp3 format and from there go to the yoto website to create the playlists, which i could then link to the cards my toddler can use on the player. Once it has downloaded the content, then it can be used without being connected on future occasions*.