A star because you can not put 0! Avoid this I listen to "read books", so the chapters follow .... After a galley week I installed them in "music", but all the files of all the books mix, i phone service brand I fell out of a total incompetent (format the drive, turn off plug, it was like with an Internet service). finally I find it takes them dand "audible" but difficult to erase, books erased via the computer appear again. If I want to listen to the radio, the unit does not remembers the stop point of the book (unlike my old player, zen) if I put the support device, it will automatically connect, think to turn off the music if not scroll even though I had put on "pause" earlier stages. I keep it as it is expensive, but I would recommend it to anyone!