ITunes refuses to import Amazon MP3 album, claims permissions won't allow me. What?

Question

I download through Amazon MP3.
I downloaded Muse's album and imported that into iTunes just fine, but for whatever reason, when I downloaded the Black Keys album El Camino it refuses to play ball.
I get "Attempting to copy to the disk "Macintosh HD" failed. You do not have enough access privileges for this."
Now, I did a permissions repair with Onyx, and even checked all the folders to make sure the permissions wasn't weirdly set, but nothing is wrong with those folders. They're not locked at all.
I can play the song files when I press space bar or even in things like VLC, but iTunes refuses to play ball for some reason. Is this an iTunes problem or Amazon? And if you could possibly point me to a forum post that is this exact problem I'd love you forever as I'm about to go on a cross-country road trip and would really love to play some Black Keys.

Answer 1

That's a workaround, but it doesn't really solve the mystery.  Ordinarily, when you add music to your library, iTunes will create a directory with the Artist name and a subdirectory with the Album name.  My guess is there's something weird about one of these fields, perhaps an unprintable character that you can't see, and when it tries to create the directories it fails (maybe I was too hasty in not blaming Amazon!).  It might even be one of the individual song names. 
If you're happy with this solution, fine, but if you want to track it down, I'd try this;
- select all the songs, do (right-click->get info) 
- Delete and reenter the Artist and Album names.  Make sure you clear the whole field
    and don't use cut and paste.
- reenable the copy and manage options
  - Try dragging the songs in again.
  - If that doesn't work, try dragging one at a time to see if a particular song is causing the problem.
  - If that's the case, check the fields for that song, and maybe reenter the title.
Note, if this works, you'll end up with two copies of everything, and you'll have to delete the one that wasn't copied. 
In any event, I'd reenable the copy and manage options, so future music will be correctly copied.