Why bother to DRM an audio book? I know one way of playing m4b iTunes Ebook on mp3 players other than iPod, iPhone, such as PSP, Blackberry, Creative Zen. Refer to this :How to convert iTunes m4b Ebook onto mp3 player or your blackberry phone free
This feature is only available to registered users. You can register here or sign in to use it.
I had the same problem with iTunes
Why bother to DRM an audio book? I know one way of playing m4b iTunes Ebook on mp3 players other than iPod, iPhone, such as PSP, Blackberry, Creative Zen. Refer to this :How to convert iTunes m4b Ebook onto mp3 player or your blackberry phone free