Hey! Hope this question makes sense. My Grandfather gets recorded books in the mail through the "Material for the Blind" program. He isn't wild about the selection and I have access to pretty much any audiobook ever. I ordered a casette for the player on Amazon but I'm curious if I'm going to have trouble adding books to it and if he'll be able to play them on the player.

Is there a special format? Has anyone does this before?

Any information would be helpful. Just trying to make his life a little better.

Thanks in advance!