problem with adope digital edition 2.0

Have you registered your ADE (Adobe Digital Editions) with a specific Adobe ID, and then also registered the device with that same id.

If you are not careful, ADE runs in a kind of anonymous registration that causes lots of problems.

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This is a vicious trap that Adobe lays for unsuspecting customers.

When you register 'without ID', ADE creates an anonymous/implicit ID with limited powers (eg can't be used to share with other devices).

Whenever you first load a DRM book, that copy of the book is associated with whatever ID the computer is registered to at the time.

Any book you load while this anonymous ID is active gets associated with that ID, and can't be read on any other device.

When you properly register your computer with a real ID, that old anonymous ID is lost.

Now you don't have any devices that can read the book.

The only way I know round this is to use a DRM stripper such as epubee BEFORE you deauthorize the device.

I do NOT advocate using such code to get around the valid limitations placed on a DRM book.

However, where the problem arises only because of the ineptness of Adobe's ADEPT DRM infrastructure and its implementation,

such a measure is totally justifiable.