newbie need help backing up dvd game

[c2kdb]

hi, I need some help with backing up DVD games. I'm not sure what to get first of all. do i have to get the pioneer one or there are alternatives? are there any external drives out there? because i don't have a desktop. and what kind dvd media is good. Also, do I need any patches for dvd games like Cd games? I didnt' find much of these basic stuff from old messages. please help me out a little. thanks a million.