I have an Ipod Classic which holds many, many books but I store them on Itunes and listen to one at a time. I have several authors that I am collecting all their books so I will have a library that I can listen to over again in the furture, The books are unabridged and are 40 + hours long. I use them when traveling and sewing, housework etc. I have found audible is a good source. I get a free credit or book each month for a low monthly payment of $15. I also go to my online library here locally but can't always get the books I want and they are only available for 2 weeks. Would not be without mine!! I can hear all the words over my midarm machine noise when quilting. 2 thumbs up for Ipods!