Originally Posted by jiminrussell
Doesn't B&N use a different ID? rather than Adobe ID you have to use the CC Number and Name associated with the purchase you made from B&N at least that is what the ADE getting started book says.
Some booksellers use a special form of protection where your book is locked to the bookseller’s ID. For example, Barnes & Noble uses this method. When you buy a book, download to your computer, and open in ADE, you’ll be asked to supply the username and unlock code you use on the bookseller’s web site (for example, for Barnes & Noble, the name and number of the credit card associated with your ebook purchase)"
Quite possible. The owner of the laptop on which I tested this was living in the US and picked up a Nook while there. After moving back to Canada, he was treated like contaminated dirt by B&N's customer service so pretty much dropped them. The credit card associated with his account has long since expired and Google search came up with several items where people complained about credit card expiration and being unable to open already purchased books.