By default we DO NOT ADD any time in between the songs. The songs will flow seamlessly from one track into another. Our recommendation, if you want a certain amount of silence between the songs, is that you build that silence into the end or beginning of the actual WAV files. If you want to specifically add a couple of seconds of silence in between the songs, we can add this after the fact but the timer on the CD player will show a negative countdown as it starts into the next track.