MPEG FORMAT, you can convert to MP3 using any online converter - realistic theme park time with abdl Mommy Missy complete with background noises & girls giggling noises. pop this into your phone while you're doing anything & imagine you're in the collercoaster line up with mommy, as she diaper checks you, talks to you about how exciting it is going on the coaster & uh oh... what's that look sweetie?? Why are you clutching your tummy?? You make a big MESS into your thick diapers right in front of some college girls standing in front of us and they laugh at you!! How embaressing. No, mommys voice isn't that loud... ok, maybe it is. oops sorry sweetie. we might as well go on the ride since we waited so long for it... you'll just have to ride it sitting in your brown mushy mess & then afterwards we'll go find the bathrooms so mommy can change your messy stinky diapy!! Done as realistically as possibly with background sound effects