Umm, sorry, but considering the fact that most podcasts are free, I dont think youlll get a lot of money. Also, probably illegal to sale without paying the industry. Also, if youre actually going to attempt to sale podcasts to people, and you dont want piracy, make something to where they can only have a description and a 30 second sample, and they have to pay to get to the actual podcast. And, sorry, but they will be able to share it anyways, because useful tools like Tunebite and Muvaudio(THANK GOD FOR TUNEBITE!) are good for bypassing DRM. So, youd be screwed as far as that goes, because not even the RIAA seems to be able to stop Tunebite, because its technically legal. It uses loopholes in the legal system. Sorry, but I personally dont think youll manage to sell podcasts, and I dont think youll be able to stop people from spreading the same podcasts around for free .