if you word it right they will fall in your favour every time... Most scammers say "goods no received" and paypal ask you to show proof of posting, you tell paypal that its not real goods and ask paypal to show proof that the goods are not sent. you then tell paypal if they take the money you will ask for legal advice...paypal have to ask the buyer to prove the goods are not digital and the buyer needs to show a vaild link to the product. So if your smart you will have your digital goods priced with a odd cent number $2.94 $2.92 $9.89. .... And thats how you stop your self from getting scamed. if the user says goods not as described you show paypal your TOS, if the scammer trys the old chargeback for fraud you just make sure that the ip is logged, get them to go to your site www.xxxxxx.com/new5 and trace the ip (make sure google aint going to index your page)