Licence needed for online rental business?.

Hello everyone. I'm starting to research about the possibility of opening a website for renting games online and sending them through mail. My biggest question is about weather I need a licence for renting the games or not? It says on the discs that renting and selling is not allowed. I must say I'm from Romania and this business idea is for Romania. I'm currently living in UK and I was thinking this will work in Romania because there is no online rental websites for games. Thank you!

Sergiu.