They cost a lot more but its a small price to pay to get through the material in a way that I actually absord.
Lots of people get very interested in audibooks and quickly stop listening, citing concentration issues. I always recommend to those people to stop doing whatever else they are doing and simply listen to the book, and people often come back to me and tell me they gave it a second shot and love it.
I'm able to wash dishes and listen to an audio book quite fine. Going for a walk, or doing other things I normally wouldn't be able to do while reading. Can I multitask with any task? No. But I can effectively do two things at once.