How to "re-authorise" a book

I can understand your frustration - just look at my ID....

The process is reliable, but whether it's understandable depends on your

experience with ebooks and ereaders as well as the information you have to

use in going through the process. Amazon makes it simple and

straightforward. As long as you're happy with the Amazon approach, have a

Kindle and don't want to access other ematerial, you can use what is an

intuitive process.

The bottom line: if you downloaded the ebook before you registered with

Adobe, it's probably lost.

Soapbox mode on

The moment you step away from the Amazon bubble, you enter 'the rest of the

world'. And that world is much more complicated.

Soapbox mode off

There are a large number of devices that claim they can read ebooks. That

said, once you enter this world, you need to figure out how your device

gets ebooks. For iPads, the design point is that Apple's bookstore would

be the source (kinda like the Kindle/Amazon link). You could get the

industry standard packages to work, but it involves effort (which you found

out....).

You need to figure out what software you should be using. Most

ebooksellers have a couple of formats for their downloads, and that should

help. An industry standard is .epub - standing for 'electronic

publication'. They're all compatible with Bluefire, Calibre, Overdrive or

Digital Editions software packages. There are 'standards' in place that

these packages observe (stemming from the Digital Millenium Copyright Act

of 2000).

At this point, you're beyond 'fixing' them for this ebook. You can go

back to Penguin and ask for a reload, and argue that the download you got

was 'corrupted', and see if they'll do that. However, the transfer to the

iPad will be another matter. You'll have to use another method than ADE to

do that. I understand that both Bluefire Reader and iTunes can do the

transfer, but, because I'm a PC'er, I don't know that firsthand.

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im having the exact same problem. realize now that should have authorized my computer at the beginning, but just wanted to read teh book.  im generally tired of having to register for everything. adobe - please help.