radio.blog DJ (or rbDJ for short) is a free PHP script designed to work with astro's radio.blog, a widget you can embed into web pages to allow visitors to listen to music as they browse your site. rbDJ allows members of a community to upload their own music in MP3 format into radio.blog's playlist, turning it into into a sort of community radio station. rbDJ can be integrated into forums, blogs and CMSs which feature a member database.