Make sure you haven't accidentally muted the audio playback in the arranger before encoding and burning the DVD. That would also affect the final DVD. Other than that, this might be an audio replay/decoding issue on the DVD player you're using. Try playing the DVD on a different player or in your computer (using a DVD playing software like VLC Player). You could also use VLC Player to replay the DVD image files on the hard drive to confirm again whether the encoding generally went OK and included the audio component. If it turns out that it's just that particular player that cannot handle the audio encoded with PhotoStory, try changing the audio settings in the MPEG encoder during the burning stage: Click on the "Encoder settings" button in the burning dialog, switch to the advanced settings and experiment with the audio settings. Not all DVD players can handle all audio settings. Some have issues with MPEG audio and high bit rates. So, try going down to 192 kbps or less first. Alternatively, you can try PCM audio instead of MPEG audio.