As far as what I know, there is no such options in powerdvd to let you carry the configuration or library to other platforms, and the movie library import depends on the local stored paths of your video files. It won't work if you just carry the folder or library settings or data to other PC as the local stored path of your files might not be exactly the same on another PC.

It might be the time to rebuild your library from scratch and perhaps this setup can also help resolve any of unknown glitch that might exist in your previous library data, which caused browsing issues.

My library is on a NAS server and so the file paths should still be the same. But I have to agree with you, there does not seem to be a way to do this. The bad thing though is it took nearly 6 hours to load the library and was hoping there was a much faster way to do it.