Podcasting in school

Parents give permission for their child's picture and name to be published at the beginning of the year. For many of the teaching tools that we have discussed, I would have to find out if any of my students have a form that says that they are not allowed to be published. To find out I need to find the list and determine if this effects any of my students. Podcasts are another way that students can reach out to others through the internet. But, if they are on the list, they shouldn't be on the podcast itself, but could still help with the planning and set up. How would you deal with a student who is on the not to be published list?