[Craig_P]

One of the books is a PDF, the other is a LIT. I can open both with Calibre's viewer and they're fine, both the original and converted versions. So I'm guessing it must be a Nook problem and not a Calibre problem.

I'm transferring by simply plugging my Nook in with the USB drive, then dragging and dropping the files directly into the My Documents folder which is in the Nook's root directory. This is how I've always transferred files in the past, and have had no problems with it before. I transferred an epub that didn't need converting this morning, just to test if there was some kind of problem with the transfer process, but the Nook opens that file without any problems.

I'm definitely transferring the epub and not the pdf. Though, interestingly, I did try to copy the original, unconverted pdf over as well. Nook supports pdf, I just prefer epub because it offers more font options. The Nook refuses to open the original pdf as well, though.

This leads me to believe that maybe the problem might be with the pdf itself, but it opens just fine in Acrobat and in Calibre's viewer. Plus there's the matter of the converted lit file that gives the same error.


edit:

I tried using Calibre to load the files onto the Nook instead of dragging and dropping them manually, and that seemed to do the trick. Problem solved!