Everyone who has Secure eReader PDBs has that problem. NOOKcolor doesn't handle them.
Although officially Fictionwise/eReader.com are part of B&N, B&N doesn't really support them at all. You can still read Secure eReader PDBs on computers, smartphones, etc., using the eReader apps. If you want a dedicated e-reader device that handles them, you'll need an E-Ink NOOK or a jetBook Lite. (There may be another device that handles them, but if so I don't know of it.)
Someone just started a Feature Request thread on the NookColor Support board. Here it is:
You should add your request there. You might also write to B&N on it.
It was a dumb oversight to exclude PDB capability from the NookColor software. B&N has been told many times from the start -- but it never hurts to tell them again.
Check your private messages! :-)
Question please, what file extension does the Nook Color use? I thought all of the Nooks used .pdb files and that was why B&N's ebooks are all .pdb files (the ones you buy). I realize that some of them are .epub, but those are mainly the freebies. What the heck were they thinking to make a product that doesn't support their own files? What?
Question please, what file extension does the Nook Color use? I thought all of the Nooks used .pdb files and that was why B&N's ebooks are all .pdb files (the ones you buy).
NOOKColor reads .epubs. All books from B&N should come in as .epub. Free or purchased.