Remember the mp3 tracks MUST be called the following....

Track1.mp3
Track2.mp3
Track3.mp3
Track4.mp3
Track5.mp3
Track6.mp3
Track7.mp3
Track8.mp3
Track9.mp3
Track10.mp3
Track11.mp3
Track12.mp3
Track13.mp3
Track14.mp3
Track15.mp3
Track16.mp3
Track17.mp3
Track18.mp3
Track19.mp3
Track20.mp3