A new album is added to iTunes, but after running CasaTunesSync, the album doesn't show up in CasaTunes.
The problem is that the songs MUST BE in a folder that is at least 2 levels deep, typically M:\Artist\Album\tracks
In this case the Frozen album is only a single level deep, so it is skipped "M:\Frozen_Soundtrack\02 Do You Want To Build A Snowman_.m4a"
Simply add another level like this:
M:\SoundTracks\Frozen_Soundtrack\02 Do You Want To Build A Snowman_.m4a