How should I migrate my iTunes library to a larger external disk while preserving metadata? I currently have a set up where my default iTunes Library (of ~550 HD movies) resides on a 2TB external HD. I share this library and use it to serve my Apple TV/other LAN devices. The drive is close to full, so I got a 4TB External HD to migrate the Library to. 

The default library path is set to /Volumes/MEDIA_2TB through iTunes Preferences, though all the .xml and .itl data still resides in ~/Music/iTunes/. 

I'd like to migrate my current library contents to /Volumes/MEDIA_4TB while retaining the metadata (ratings, play count, watched/unwatched, date added, etc), as well as set Volumes/MEDIA_4TB as the new default library. 

It seems that the file paths are tied to the metadata files though. If I change the default iTunes Library through iTunes and then "Consolidate Library" will this work? Is there another/better way?



Note that I don't want to create symlinks as in this Q&amp;A: Move external iTunes library files to different location without losing metadata
So I successfully migrated the library without losing the metadata by:

1) Changing the default library under iTunes > Preferences > Advanced > to /Volumes/MEDIA_4TB first 

2) Selecting all the contents of the library within iTunes. 

3) Going to File > Library > Consolidate Files

After many hours of copying, I confirmed it worked by right clicking on a movie > Movie Info > File Tab > Location: /Volumes/MEDIA_4TB/Movies/[Name of Movie]. I can now safely delete the contents of the old 2TB drive and reformat it.