Not sure what age your children are, but for kids of 3-9 years, the Jesus Storybook Bible by Sally Lloyd Jones is now available on audio CD and is a MUST! My daughter listens to it all the time and remembers so much.
We have loved the Little House on the Prarie books, Mr Poppers Penguins, The Hobbit, and many that are on the books list. Right now we are listening to The Door in the Wall. It seems like even when you have no where to go you are always going so we make sure to have at least one audio in the car to listen to at all times.
Hi Girls — My daughter (age 2 1/2) loves listening to Winnie the Pooh audio book. I downloaded it from iTunes; The Many Adventures of Winnie the Pooh read by Christopher Plummer. This is by far the best Pooh audio as it includes music. I bought a three disk one from a Barnes and Nobles read by someone else but it was too dry.