Hi. I'm having an issue on Mac OS 10.10 Yosemite. I use the Make Mp3 file function often to duplicate songs and burn them to CD. My truck only plays MP3 CDs, and I can fit many songs on a disc this way. However, when I control click on a song in iTunes now, I don't have that option. I also don't have the Delete option, an equally useful one. Sincerely appreciate any advice. If it involves deleting the Preferences file please let me know where that is. I couldn't find it for the life of me. Thank you again in advance.