I think you can do it if it is in the library -- but if its not then you need to right-click on the file and actually edit the meta data/ID3 tags in the file properties of the actual mp3/audio file.
I think you can do it if it is in the library -- but if its not then you need to right-click on the file and actually edit the meta data/ID3 tags in the file properties of the actual mp3/audio file.