content: This does somewhat bother me, but as a long term Audible customer, I can say that the DRM system they use is some of the least objectionable I have ever encountered. It's right up there with Steam's DRM. I can download my audio books to every device I have ever wanted to, as many times as I want to. I can have as many simultaneous devices as I want, and almost all of them sync though the cloud so I never loose my place. If I buy the eBook on Amazon, that syncs back and forth as well. The DRM check is done when it downloads, which you would need to be online for any way. Once you download the audiobooks you can take your device offline an never reconnect it, and the audiobooks will keep playing just fine forever. They have great mobile support. Their app is as good as any player I have ever used, and I can purchase download and listen entirely from my mobile devices, without needing any steps.