Uploading via EphPod is apparently the best way to upload the Audible.com files. I'm able to upload them using the "Add Songs" option, and then I simply have to remember NOT to save changes upon exiting. If I follow those steps, then MC9 doesn't seem to have any problems continuing to access my iPod.
However, I'd really rather not have to use 3 different programs simply to be able control my iPod. I still have to use Audible Manager to download the new audio books, then EphPod to upload the files (and with both I have to be very careful not to "break" the iPod for MC 9). Then I have to connect with MC 9 to update any smartlists, etc.
I guess my problem is that if EphPod can upload the Audible.com files, why can't MC 9? In every other way, MC 9 seems more powerful than EphPod (as it should, since it's infinitely more expensive).
Rob
SteveG - I will look into your suggestions, but probably not until Monday as I'm about to go out of town. Just wanted to let you know that I wasn't ignoring you! Your comments seem accurate to me, but I definitely want to test them out.