Can't add files to nero

I can’t add my files to nero for some reason. This is my first time I’ve used nero, so I don’t know what I’m doing. When I try to add my files it says “no compatible file found” The files are in avi format. So can anybody help me figure out how to add the files.

Firstly, don’t post the same question twice.

Secondly you cannot burn avi files to a DVD video, you must convert them to DVD Video format first.

Go to the Video Editing section, there are plenty of guides available there to help get a result.