If listing iPhone/iPod tracks takes a very long time, this means that your iPod/iPhone library was either not found or is severely corrupt.
Luckily CopyTrans bypasses this limitation and automatically searches for all tracks that can be found on the iPod. Backup is done as usual except that meta-data such as playlists, ratings, playcounts, … cannot be displayed and copied because those are stored within the iPod library.
Your iPod/iPhone library can be missing/corrupt for several reasons among which:
The iPod was unplugged without having properly been ejected first
The use of an alternative iPod manager
To fix the library once you have fully backed up your iPod, try the following solutions:
Solution A: Manually add a song to your iPod through iTunes.
Close iTunes and open CopyTrans Manager again to check if the problem is fixed.
WARNING: To avoid “Automatic synchronization” of your iPod by iTunes click and keep the Shift and Ctrl keys pressed while you open iTunes. Please refer to this FAQ article.
Solution B: Restore your iPod library through iTunes.
This solution will always work but is radical.
WARNING: This will completely erase the contents of your iPod. You should create a backup with CopyTrans before you restore.