Burning dvd video with stills and motion. stills do not record sound but motion does. Sound for stills is from Apple library

• I have an iMovie of 8 minutes.

• It is composed of stills and video clips

• When I burn it to a DVD, using Hot Burner

the sound is good on the video clips

BUT disappears on the still images.

• The sound on the stills is taken from the iMovie collection

• All images run for about 9 sec.

• My iMac OS is Ventura 13.6.7