Quote:
Originally Posted by Bookworm_Girl
I think that Simultaneous Device Usage refers to the number of devices registered to a single account that has purchased the books. For example, you want to have the book on your Kindle, your spouse's Kindle, your iPhone, your Kindle for PC, etc all at the same time. The Loan Me feature is for loaning a book registered to one user's account to someone with a different Amazon account. If you go to the Manage Your Kindle account page and click the arrow next to the book title in your orders list, then you will see a button that says "Loan this book" if it is lendable.
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But also
Lending: enabled
in the "Product Details" section of the full Amazon entry for a book, eg (recommended)
http://www.amazon.co.uk/The-Spirit-R...dp/B003Z4KBIO/
Simultaneous Device Usage: Unlimited is Amazon's small print for "this book is not DRM'd/ encyphered" and I suspect the two are connected so a SDU:U must be enabled for lending and enabled for Text-to-Speech(TTS).
Googling I found a Q&A
At this time we are not supporting the feature to manage Text-to-Speech (TTS) settings and to limit simultaneous device usage for Kindle books published through Amazon’s Digital Text Platform (DTP).
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Thus the indie books may have become Lending: enabled by default where the the big publishers will have a response time delay just to answer the question.