> I went tools>Import> Check "Import a single holder" >Next> Selected a folder and then >Finish.
In the Recently Imported Playlist view, you should see the files you imported at the end of the list.
> Unfortunately, those fields added are still empty.
> How does MC get the value of "Sort Name" in xml file and put it in the library?
JRiver normall uses the Tag values that are stored in the music files to fill its library database fields. I do not know whether JRiver has any feature for reading the iTunes database to get tag values.
To see what Tags are present in the files, Click on one of the files in the Recently imported list. If the Tag window is not visible, make it visible using the Edit/Tag command. Now click on the first line in the Tag window just below the word Tag. This opens a window that lists a lot of information about the file including the tags that are actually present.
What is the file type of the files you imported? WAV, AIF, AAC, MP3?