ratman316, welcome to the forum!
In order to really answer your question, we must know what you're really trying to accomplish.
You are probably trying to do one of the following two things, but which is it?
- Simply make a data DVD that contains the same AVI file.
- Make a DVD Video disc that can be played in DVD players.
If you're trying to do #1
, then you need to burn your DVD in UDF format instead of ISO 9660 format. The reason is, that ISO 9660 can only hanlde files up to 2 GB in size, but UDF can handle files as large as the capacity of the DVD.
If you're trying to do #2, then it mostly depends on how long your AVI file is (playing time) and what quality you can accept. In any case you will have to make a conversion and perhaps also splitting the content between multiple DVDs. You can use NeroVision Express for this purpose.