[mindonstrike]

You may have imported in a different location, for instance if you are trying to import to "Sound Choice Spotlight SC8101 Book ID 8101" and you get that notice it might be because Bookid 8101 is associated with "Sound Choice SC8101" (minus the spotlight).If none of your imported songs from that disk show then that's probably the case. At some point in the past i think the database was expanded or changed or something i'm not sure.
I think you can get that info from the search funtion on the playlist, IE do a bookid search for that disk # and I think it will show you how it was imported. You can also get that info from Accel if you have it.

I've had a bunch of these, they are always there, just a pain to find sometimes.

Hope that helps.

Sam