problems putting multiple files on nero

I have been trying to put multiple dvd files onto one disk but when i select the second set of files (i.e the second episode) it doesnt seem to want to put a new set of files on with the ones that have already been selected. I have tried putting them in a seperate folder but it still seperates them and making a new folder but the new folder wont even come up. I have nero 8. So if anyone can help that would be greatly appreciated

 

uh video ts

 

so i wont be able to use nero at all for this? theres no way to get around it?

 

its doing the same thing as nero, saying that the file name already exists -.-

 

dont worry, i folloewd your guide and your advice properly this time and it worked thanks