听力原文：MA I want to burn these lectures onto one CD, but I'm having trouble doing it. I keep getting an error message. WA Have you checked all the settings on your software program? MA I did, but it's the first time I've used this software and maybe I missed something. WA Let me take a look... Okay, here's the problem... You had the wrong box checked for the file-type. You need to mark the box that says 'MP-three.' Try copying again, it should work this time. What does the man want to do?