Do you have enough money to cover the DVDs and the shipping? PayPal won't charge you for using it, but you can't charge it like a credit card. And is the dealer you're looking at on eBay one with a high rating? People with low ratings that also have several negatives on their profile are usually scam artists. And are these official DVD releases? Read the fine print, they may be burned copies or pirate knock-offs. I've saved money there too, also have several websites for DVDs that I have used for years now that I can trust -- I am more leery of buying DVDs on eBay though, caveat emptor.