I used DVDDumper do dump game to 2Gig SD and put all 3 .iso on pc how do I join them? I tried this and it didn't work:: when you copy them across rename them to something that you'll remember like 1.iso, 2.iso, etc.... that'll help you remember order of parts too. When you have all of the parts press Windows Key + R and type in CMD you should end up with a black screen with some writing.... The command Prompt. Type DIR and press enter and make sure your iso's are in the same directory as you are. then type COPY /B 1.iso + 2.iso + 3.iso complete.iso This will combine all the parts into a file called complete.iso and you can burn this.... As you can see most people will use Wifi as it's quicker and easier.