When you insert a CD to be ripped you should check the info iTunes has retrieved before actually ripping the CD. Sometimes the database info is wrong, or not in a format that is optimal for you.
Insert CD and wait for the import screen.
Highlight all songs and choose "Get Info".
Review the info (including the "option" tab).
Accept or change data.
Import CD.
Insert CD and wait for the import screen.
Highlight all songs and choose "Get Info".
Review the info (including the "option" tab).
Accept or change data.
Import CD.