In our latest version of Librivox, you may sample any of the 7000+ audio books before actually downloading an entire audio book. This is particularly helpful since often there are multiple versions of audio books for the same book title. You can now freely roam among the thousands of books and sample each of them until you find the one to your liking.
Data usage: Sampling audio must be downloaded from server. To limit data usage, sampling audio is limited to 0.4MB data. Sampling 1000 books may cost you 0.4GB of data. Sampling all 7000 audio books in Librivox will cost you roughly 2.8GB of data.
However, if you use WIFI connection, cellular data is not used at all.