ComputerBB

Ok iv got a portable lite on dvd writer which can take the format dvd+r/rw. My main problem is i have just reformated by whole computer but it is still not working as when i plug it in it's called DVD-R DRIVE j: (which is supposed to be+) and thats not al... when i insert a dvd+r into the writer it then changes to being called cd drive j: I also have a dvd player /cd writer which is fitted into my computer which i think may be conflicting with the lite on dvd writer...but what should i do?????