Merge question

[TTowntenor]

I have a dilemma. I recently bought a bunch of new discs & ripped them at home to copy to my show computer. When I got them to the show computer I rebuilt the database & it came up with several duplicate book id numbers. Since the book id is worthless to me, I merged the database...to my understanding this will change the book id's that are duplicates....correct? Well I did the merge, when I tried to bring up the new discs by song name, the song name came up in my search, but when I added it to the playlist, an entirely different song came up. So I started checking other titles that I recently added, same thing, the right song title comes up in the search, but the wrong title comes up in the playlist. So I note the book id of the song I want to play & the song that came up & they are the same? I thought it was supposed to change the id to a new number?