Thanks. That is very informative.
Thank you for those links.
Out of curiosity what version of OS X are you using?
I have a Mid 2007 iMac, Intel Core 2 Duo 2 GHz, 4MB of RAM and a 250GB Hard Drive and the latest iteration of OS X, 10.7.5.
I am using the latest version of iTunes.
I ran out of space on the internal drive so I was using an external firewire drive. This drive failed and I got the files off and onto another external firewire drive that already had folders on. It had the capacity I needed.
If it is as simple as renaming the drive and using the same folder structure as the failed drive I can do that.
I moved the folders off the failed drive onto the new drive using Disk Warrior 5.
I could hide the folders that were already on the new drive in a folder that came over from the failed drive (although not into the folder with the iTunes media folder).
iTunes would see the basic structure of the failed drive it was expecting.
That assumes it didn't care about changes to folders that do not have the iTunes media folder. One of these would have the folders that were initially on the new drive before I used it to rescue the folders on the failed drive.
Can it be that simple.