I cant get my entire itunes library to import. Ive imported my entire CD collection 100's of them back in the days of Iphone 3 and have just always transfered all my music to my new phone, Now it will not add all these songs to my library on my PC. Why? I have them on my old Mac no issues. But with my new PC It's only transferring my recently purchased items
See Move your iTunes library to a new computer - Apple Community or Recover your iTunes library from your iPod or iOS device - Apple Community.