If I have a mix imported into iTunes off of CD that is broken up by track, is it possible to export it as a single file?
someone asked me this question just the other day… i did some digging and found the below.
iTunes does not have the ability to combine multiple MP3s into a single MP3. The best it can do is if you burn them to audio CD and then rip back with “Join Tracks” enabled. The better way is to use an audio editor such as Audacity, or a special purpose combing tool such as MP3 Joiner.
more detail here Ask the iTunes Guy: Moving playlists, how to join tracks, and more.