Audiobook sync issue with 2 ipods on ONE account... how to???

Question

Hi, I have 2 ipods connected to my mac which we only use one account.
The problem I have just discovered is if we sync audiobooks to one ipod, start listening to it and then we sync that book on the other ipod the history of of where you were at in the progress of ''reading" is lost as it now keeps track of where the most recent listener is.
I know I can resolve this by creating two user accounts but I would like to avoid this if possible.
Is there a way to sync the SAME audiobook on 2 ipods without loosing the history of progress while only using ONE account.
Please feel free to ask me to clarify if needed.

Answer 1

I noticed that I have a protected audiobook file downloaded from iTunes. It was a free download.
So I tried making a duplicate in the same folder where the original file was kept. When I dragged the duplicate to the iTunes window, I got a second listing for the book (in iTunes). Checking the +Get Info+ for each instance of the audiobook, I saw that each one was for a different file (original and duplicate).
If your iTunes does not act this way, it may be one of the preference settings. Go to iTunes Preferences Advanced pane General tab. I have +Keep iTunes Music folder organized+ checked. I do NOT have +Copy files to iTunes Music folder when adding to library+ checked. If you have that second option checked, when you drag the duplicate file to the open iTunes window, it may see the file is already there and not do anything OR it may replace the original file and therefore not create a second listing in iTunes.